dox provides you the simplest way to remember things. It is an elegant app that displays your task list without distracting you. Run dox if you need it, close it if not, add some new tasks, check some off and clean your list with one click. It's really that simple.
dox is always on top so any action is only one click away. You can also use multitouch gestures to manage your tasks, run dox as a menulet and sync your tasks with Dropbox.
I believe the memory is all about one simple choice - to remember or not to remember.