Most of my practices are reasonably subtantial and I don't forget about them -- which doesn't mean I always do them daily or as required! However, I have one practice that is quite simple and small (yet significant) and I can easily forget it.
But when I log on to check off my more major practices, there it is, staring at me challenging me to get it done! It's something I do sitting at my desk, so I do it even as I am checking off the other practices or writing up some review or other. Worth visiting my Change Project or Practice Manager just for that reminder!