When my Mum stopped sewing (about fifteen years ago) she gave me all of her fabric. Most of it isn't cotton - she wasn't a quilter - but many many pieces are bits left over from clothing she made, and that I well remember! So....my personal scraps date from when I was in college (20 odd years ago) but if you include my Mum's stuff, some scraps from 40 years ago, probably.
Alison