Here's a few of mine...
Always wear a Redskins hat... I rub the brim on every play that I think the Redskins need a little added luck.
Always wear Redskin colors from the moment you wake up on Game Day... don't put something on and think your fooling the football gods if you change into your gear later... in B&G right from the crack of dawn.
NEVER let opposing colors into your house on game day. If it's not the team your playing, then that's kay... but never, ever let a buddy into the house if he's wearing the gear of the team your playing against... ever!

Always yell at the TV... the players can hear you if you yell loud enough.
And perhaps the most important of all...
NEVER leave the room during the game... this will always breed disaster. If you gotta use the head... wait til a commercial... need something to eat... wait for a commercial.
I always know when the opposition scores, that some peion has got up and gone to the washroom in the middle of the game... for crying out loud... wait til a commercial!!!
