Lessons from Lone Wolf: Choice and Consequence

I've been running a group playthrough (or let's play) of the Lone Wolf gamebook series on the Something Awful forums, and I've gone over the books in some depth in order to provide extra information and to attempt to make some bits work a little better (eg. not letting us get into stupid dead-man-walking states). In doing this I've come away with a few lessons that anyone thinking about writing a gamebook should follow. Here are some of them, in no particular order.