Do anything crazy, well not crazy in ur own mind, but when the wife or friends see ya, they definately raise an eyebrow! :
I start out w/ a fresh new jersey each year, and whatever I eat b/4 and during the game on week 1 if we win, is what I do the entire year..always. Same clothes, same food, same drink, same glass (unless Im away from home :D ) , same chair in front of the TV, same hat or bandana. If we lost in week 1, I'd change it up in week 2, and then go from there.
The wife used to think I was nutso, but now she's into it too. If I fall behind in getting dressed in my gear garb b/4 the game, she lets me know.