Harry Potter Headcannons

Hinny

Bill usually took responsibility for reading Ginny a bedtime story, but one night, for a reason nobody can quite remember now, Charlie was given this task. Not having the creative imagination Bill did, he was stumped when Ginny demanded something that wasn't from The Tales of Beedle the Bard, and ending up rehashing the story of How A Little Boy Called Harry Potter Saved The World From A Bad Man, something he'd heard on the news many times before. Ginny was absolutely entranced by the idea of a superhero only a year or so older than her, and so a crush was born. (Charlie was reminded that it was entirely his fault, repeatedly, at the wedding)
She never fully forgave Ron, Fred and George for not telling her that he was in the kitchen when they rescued him in the Ford Anglia in the middle of the night
(Or Harry for buying her a butter dish as a first wedding anniversary present)
Hermione advises Ginny to let go of her crush on Harry during Ginny's second year, telling her gently that she thinks that Ginny's in love with the idea of the Boy-Who-Lived, not Harry himself. Ginny realises that Hermione is right, and spends a fortnight getting over the Boy-Who-Lived. Unfortunately, she quickly realises that although she's managed that, she's also managed to fall in love with scrawny, ridiculous, shy, delightful Harry
She's not the only sap, though: Harry totally keeps her singing get-well card she makes for him when he falls off his broom in third year
Ginny does, however, take seriously Hermione's advice to go out and enjoy herself with other boys; the only part of which she regrets is staying with Dean Thomas after realising he was more in love with her than she was with him
When Ginny returns to Hogwarts for her seventh year, she's made Head Girl. In the Heads offices, she finds records of all the detention slips and house point deduction forms and so forth Lily Evans and James Potter wrote out during their year as Heads, and the little notes they wrote each other on them. With McGonagall's permission, she makes copies of all of them and presents them to Harry as a birthday present and even after over 50 years of marriage, it's still his favourite present from her
The 'something floral Harry thought he had smelt at the Burrow' was Ginny's shampoo; the cheapest one the Ottery St. Catchpole apothecary sold, often bought in bulk. Once she started earning money with the Harpies, she began to buy herself more high-end make up and toiletries, including a new shampoo. It took Harry nearly three months of surreptitiously sniffing her bath products to work out why her smell had changed; when he finally did (and explained to her why he'd been caught sniffing the women's shampoos in the shop yet again), Ginny went back to using the old, cheap one again just for him
Harry always buys her the highest of high end bubble baths and soaps and body lotions for birthdays and Christmases, partially because of that, and partially because sharing one bathroom with eight other people at The Burrow meant there was never any time for long, luxurious baths when she was growing up, and being able to fully relax by herself in their bathroom at home is something she absolutely loves
Ginny cooks, because for Harry it just brings back bad memories of being forced to do chores for the Dursleys, and trying to make food from next to nothing during the trio's time on the run. He does, however, learn to bake, and when they're both particularly stressed, they like to make cakes and pies together to soothe themselves and it's very Great British Bake Off
One of their biggest recurring arguments is over how many chores their children should do: for Harry, any is too reminiscent of his time with the Dursleys, but Ginny's parents were quick to instil in all their children an appreciation of hard work. They're both right and wrong and have to yield ground, but in the end they reach a compromise and only James, Al and Lily are annoyed by the end result that they still have to help around the house a bit
They don't bicker like Ron and Hermione do, but they both have worse tempers, so when they do occasionally fight, it's usually a big blow up (which is worth it for the make-up sex)
The first time they have a proper, massive argument, Ginny is ranting and raving to Hermione about how angry she is with Harry and what an idiot he is and how she can't believe he's being so selfish and eventually Hermione gets so sick of her going on and on that she tells her, 'if he's made you that angry, leave him!' And Ginny stares at her in utter disbelief and just says 'don't be so daft, I am the only person he's allowed to make this angry and he is the only person who will make me this angry and not be Bat-Bogey'd' and then stops and listens to herself and just says 'perhaps I should tell him this' and apparates away to apologise, much to Hermione's amusement
Harry goes to Ron to let off steam and Ron's like 'but did you really go through all of Ginny's brothers threatening you for daring to go out with their baby sister only to leave her at the first little argument' and Harry's all 'are you kidding I would take all you guys every day over Ginny have you seen her temper/Bat-Bogey Hex??' and Ron's like '...good point well made, now here is how I make it up to Hermione when I have been a dick *gif of giant scroll being unrolled*'
Everyone wants to come to their wedding, and they initially intend to have only a small service for friends and family, but they both have so many friends that they're soon inviting hundreds of people. The press interest in the ceremony grows by the day, so in the end they auction off press access on the day to one paper only. It's won by The Quibbler, who promptly donate half their sales money to a charity set up for orphans of the war, and half to a charity designed to enable poor children to participate in Quidditch. (The voting may have been rigged by Ginny, but an awful lot of money goes to worthy causes and she never professed to be an angel, anyway)
They don't really go away on holiday much because, in their first few years of marriage, the two of them were both away a lot without each other for their various jobs, so their ideal holiday is just time with the two of them at home, together (they soon figure out that they want a new place together, away from all the old memories, but they still own 12, Grimmauld Place and let the press believe they live there because it is so much easier)
Their house is in Godric's Hollow, on the other side of town to his parents' cottage but still within an easy walk of their graves (always kept supplied with fresh flowers by Ginny) and not too far from her parents' home in Devon. Their house has four bedrooms (hence James and Al having to share when Teddy comes over, as mentioned in the Epilogue, which he does often), a thatched roof and an enormous garden, hidden from Muggle eyes, where games of three-a-side Quidditch are played with frequency
Some years later, the two of them are enjoying a glass of wine in the garden after the children have gone to bed on a summer's evening and Harry, casting his Patronus, discovers it has changed to a Stallion. Ginny casts hers more easily than she has ever done before, and the two animals canter around the garden together for hours
For privacy reasons, they go out in public-together and en famille-mostly in the muggle world, where they're not recognised. Ginny learns how to use muggle money and contraptions such as the Tube or lifts/escalators with ease, but for both of them their knowledge of muggle popular culture stops in the late 90s/early 00s, when Harry stopped living in the muggle world entirely (though, as Ginny says, a world in which S Club 7 are no longer together is not a world anyone should want any part in)
Even after they've been married for many years, they both still suffer from nightmares because of everything that happened to them when they were children, and there's still things that they take years to tell each other because they're so horrific (Harry doesn't know everything about Tom Riddle's diary until he's 67; Ginny doesn't know the full details of what happened at Malfoy Manor until she's almost 80). They help each other through it as best they can, and remind each other that, if one good thing came of it all, it's that their children do not have to go through anything remotely similar
He doesn't tell her about wanting to go to her, when he was walking to his death in the Forest, until he's on his deathbed for real, and says he's glad that, this time, she's there with him for real. And even when he's gone, and she's alone for the first time in almost a hundred years, this is what comforts her most