For quilting, I use 3 x 5 cards to tell myself what I need to work on next. I also use them remind myself that I have to take a picture of something that is done. I can put them on the bulletin board in the sewing room or just leave them sitting on (or near) the sewing machine. Works great.
I also make lists of other stuff too. Movies coming on in next week, things I need to tell my sister. All kinds of stuff. You should see me getting ready to go on a vacation.... Yikes. There goes another tree.