As in, do you tend to do things that ultimately detract from your gaming experiences?
My own vice is collectables, such as Assassin Creeds' flags, Uncharted's treasures or something equally useless. I don't care about achievements or trophies, but I'm doomed to searching every inch of a game that include collectables in an adventure. I wouldn't mind doing this on the second playthrough or something, but I struggle to stop myself from doing it the first time around. I wish I could toggle them off or something so I could just focus on everything else.