Gawd, I'm ashamed to say loads of stuff. I've thought so often of getting rid but I'm too sentimental. My daughter will be tearing her out when I've dropped off the plate.
Briefly - (haha)
1st wedding present dinner set - 8 piece settings of everything plus coffee/tea/milk/sugar pots, set of kitchen knives, Kenwood Chefette mixer/blender.
Jewellery, craft books, silks and a zillion cotton reels, work related ref books, items from a uniform I wore, certificates job wise, Advanced Motorist badge, membership cards to various clubs, Hydes Anvil Ales poster - caricature of myself and 2 friends, newspaper cuttings of dad, receipts from flying lessons LPs/singles.
Pair of hot pants (still fit

), Victorian cape (antique clothes fan then), tribal fur cape from South Africa (present), single set of Mary Quant sheets (superb quality to this day even tho' I don't use them now), cuddly toys that have a special meaning.
Swiss music box/3 small cuckoo clocks, cow bell (which I'm ashamed to say I nicked

), Westclox Big Ben alarm clock (still works), transistor radio (still use every day) .... oh a huge box of tools when I was into DIY, c/o my dad
Incidentally, does anyone remember the days when you could go into a booth and record a record? It was the 60s rather than the 70s. Anyway, amongst the LP/singles is a single of a couple of friends and myself singing Herman's Hermits 'I'm into something good'. I still remember every word