I suppose this sub-category might be the place for this. What do others do for sources of rags? From where I used to work, I had a huge bag of rags a few years ago, and I've been slowly adding to it my old t-shirts, etc as time went on. Unfortunately, the extinction rate of rags is higher than the replenishment (even though I wash and re-use ones that are feasible) and now I'm starting to run out. Anyone found a source of rags locally? Are charity shops, for example, a likely source?