90% Planner, 10% Winger, combined with an absolutely terrible memory. Makes for situations like the following, all of which occurred last night:
GM: "You can go down either of the these hallways into the temple you've been exploring, or this long one that leads east away from the temple into the darkness."
PC's: "Yoikes, and away" (East).
GM: (Frantic shuffling of papers...)
GM prepares encounter with BBEG, complete with huge, trap-laden entry doors and multiple levers to control said traps and even individualized notes along the lines of "Your god tells you that 'This is the big one, Elizabeth'".
PC's: Promptly ignore the doors, find a back entrance to said encounter room that GM had overlooked (Who wrote this piece of

?), and prepare to enter in a decidedly weakened condition
GM: Sudden gastronomic event, followed by (winged) addition of locked door at the last second, allowing just enough time to realign the encounter sufficiently and scare them off long enough to rest.
PC's: (Having waxed BBEG ridiculously quickly) "Our job is done".
GM: (Realizing there's a whole lot more to do in this adventure) *flopsweat*
Fortunately, we ran out of game time at this point, so I have a week to tweak the situation.
It's enough to drive guy to drink (which might have something to do with the memory problem...)