User-up here, too. Any cooked veg left that isn't used up by the next day is put into a bag and stuck in the freezer. I use it to put into soups. Same for chicken carcases - they just get bagged and flung in the freezer, too.
I also (someone else does this?)cut off the ribbon hanging loops that are inside clothes and tie them together to tart up present wrapping. Rubber bands (usually dropped by the postie!)are kept in an old tin and are used for sealing opened freezer bags etc.
When an old chest of drawers gave up the ghost, we removed the handles and castors and sold them on eBay.
I also cut off the green bits from cheese, even though I was trained not to do this on numerous Food Hygiene courses at work (working with people whose health was rather vulnerable, therefore I obviously followed the correct practices). My mother, grandmother and many generations have scraped off the green bits from cheese and furry tops from jam and have lived to tell the tale, and maybe have been all the stronger for it.