Quite honestly, when I play my A+ game, I haven't really done anything. The day has just led me to a relaxed and focused state naturally. There are things I can do when this state isn't reached naturally but I'll only reach A game, not A+. Some of the best things for relaxation include, eating a light meal of favorite foods, a long hot shower, of simply sitting quietly in a comfortable chair whilie clearing my mind. Things that help with focus can be a light study session, the chair sitting I mentioned, and probably most effectively, reviewing my goals for the upcoming session and focusing on the strategies that will help me achieve that goal.