I've had these in my possession for a while, but wasn't sure what to do with them. They are drawstring bags that sheet sets came in. Then it finally clicked...put them into shoe boxes! There would be many uses for a bag like this: to hold school supplies, toys, clothing, etc.
We actually don't use flat sheets in our house (gasp, I know! Am I the only one?!) So I have a very cute ABC flat sheet that's just waiting to be made into something. I'm thinking maybe some more drawstring bags may be in order. The only problem is that my sewing machine and I aren't on speaking terms right now. I may need to remedy that. ;)