every DJ needs to prepare for his set.
i generally hit the club a week before on the same night (or talk with people who know the club) and get an idea of what the crowd is generally up to. i then make a playlist that has twice the amount of music i need. keeps my options open while keeping me on track with what i want to play.
double check all my gear, make sure i have all materials and make sure i am there early to setup and hangout with the staff.
Bookmarks