Unused Paint

I usually paint every night depending on what's going on and I always have left over paint from each session and the idea of just letting it dry up is really aggravating to me. Instead of letting it go unused, I grab a small canvas that's laying around and I spread the left over paint randomly on the canvas. The canvases will eventually be used for something and it will be fun to incorporate the color, shapes and textures the extra paint creates.