My current plan is to create folders titled with the addresses of where I've lived, then fill them with photo albums from events that happened while I was living in that particular place - parties, holidays, vacations, silly moments, etc.
The plan would work beautifully for a photo like this:
|Mercier Street > 1985 > No. 2 child's baptism|
|"Care Bear" party for golfer Tom Watson's kid, year/address unknown but I think I was pregnant.|