Frames

In all my cleaning and organizing in the house this weekend I found a bunch of frames that I no longer want/need in the house. I added them to my garage sale pile but then I remembered a conversation I had this summer with a daycare mom about having a frame exchange. We had discussed gettin a few people together and exhanging frames that we no longer wanted and we'd have some new fun frames to add to our homes. I think it would be a great solution to no have to buy new frames as often. What do you do with your old frames?