We'll shortly (sadly) be selling a house which has been in the family for years. It's been a much loved centre of the family, albeit neglected and will need a lot of work to bring it back up to scratch.
I'm thinking of leaving a time capsule in a biscuit tin under the floorboards - some photos of who lived here, a few notes, perhaps a floorplan with notes of how we used each room and a newspaper? I know it's likely to be found during the next owners renovation works so I'd add a note saying "if you find this please add your own message and replace it for future owners to find"
I can't work out if this is a nice thing or a bit barmy!