I've not spend a penny on any crafting items but I have collect a few free digi images and they get stored on my pc so taking up no space in my craft-room.
I have made 10 cards, 2 A5 notebooks for my girls for stocking fillers and covered 2 notepads also for stocking stuffers, and all from my stash.
I think my favourite UIU project has to Morgan's Christmas card all from old stash including the pencils that came from a pack I got for my girls when they were still at school.
I've found some postits I never know I had so they will be made into presents at some point some.
And as for my Wool stash well I've made 6 hats for Bonnie Babies which is the Charity I knit for. The challenge they have set is to make 10,000 hats.