200 pounds; five kites: 6,8,10,12,14; two boards: 135 and 161 twintips.
At least that's what I'd bring if all bets are off on what the wind will do (and I have enough room), such as a week-long trip to the Gorge. Usually for day trips locally I have a pretty good idea what it's going to be blowing and I'll only bring 2 or 3 kites and one board.
As a freestyler with a taste for being really lit up, I also like to balance that with using the smallest kite possible for maximum responsiveness.
90% of the time I could get by with an 8 and a 12: If it's light ride the 161; if on the 135 and it starts overpowering trim it in and just play on the waves; if it hits upper twenties or more get out the 8.