Games should include a menu option like "I haven't played in a while, give me a quick 5 minute refresher on the controls"
@kenney That's a neat idea. Micro-tutorial, as it were.
Not about controls, of course, but a design decision I think is brilliant in Return to Monkey Island is the "Previous on..." feature where if you haven't gone back to it in a while Guybrush gives you a previously-on to remind you of the story so far and what you were up to.