What do you do with your reusable bags?

I can't believe I actually purchased cheaply made reusable bags years ago. Now you can find them all kinds of places for free. I have quite the stash. Above are the cheap, washable bags I use for groceries.

 Above are a few of my favorite, better bags that I use for stuff other than groceries. The beige ones are heavy canvas and can hold heavier things. The canvas one with the cross was made by one of the kids in Sunday School or something. The light green one folds into a flat square that makes it convenient to store and carry.

The bags above and below have special meaning. The one above was the very first reusable bag I ever acquired. I bought it from a lady at a farmer's market who handmakes them. It's very large and of course, I love the chicken she stitched on it. It has seen a lot of use!

The bag below came from Cracker Barrel.  It's not where it came from, but the memories it evokes that make it special. Just before I moved last July, a dear friend of mine took me to Cracker Barrel to eat one day - a sort of farewell dinner. We talked a lot that day - about the past and the future. She and I both love the little Cracker Barrel store, and that day we bought these great bags. They are humongous, sturdy, and pretty enough to carry whatever we might be taking to a relative's house for Thanksgiving dinner. I always think of my wonderful friend whenever I use this bag. Love you, Candice!

And last but not least, these bags below are smaller than most. One day I want to be able to make or buy some mesh bags for produce, etc. but until then I have been using these. They are also good for carrying snacks or lunches on car trips.

So here's my question for my readers... what other things can you do with your reusable bags? I have taken them to the library and grocery store but it seems like we should be able to do so much more. Any ideas?