In addition to what you already mentioned, I notice that the older I get, the more I have to make sure that I am properly hydrated before, during play, and after. Helps recovery I feel.
Also, I sometimes wear braces/pressure straps in areas known to have pain problems in the past. However, I do this preventatively, so even if I feel no pain whatsoever, I still wear the braces/straps. Currently I wear patella straps (runners straps) on my knees. I find that this makes my knees less achy after playing.
...and of course there are the Advil after I play.