I mostly use them. It is slower, but many are kept by the people who work at the places I spend them at, so they basically take them out of circulation and I do not have to worry about searching thru those particular coins again. When I spend that $1000, I go get another two boxes and repeat the process. As I said, it is slower but works for me. If I go on a long trip I will take a bunch with me and deposit them in the branches of the banks I have accounts at, and again that gets them out of the area.