Heh. Just had a quick browse. There’s just fucking everything, mate.
Certificates for stuff dating back to primary school (sports day potato race, cycling proficiency, butlins fancy dress, red nose day fundraising, etc, etc), 18th and 21st birthday cards, swimming patches/badges, all sorts of school projects, driving lesson booking card, driving test appointment cards, driving test error sheet, Duke of Edinburgh stuff, ‘love letters’, letters from school mates from the few weeks of uni, karting results printouts, on and on the list goes… I take a photo of old t-shirts before getting rid of them when having a sort out, ffs…
It’s a little bit exhausting in some ways, to be honest (and most of the good stuff needs an element of redaction).