What’s the last thing you usually do or think about before you fall asleep?

Some days I read a little from a book until I become too tired to actually read anything effectively. Other days I grab my iPod and listen to music until I fall asleep. It really depends on my mood at the time. I just can’t climb into bed and fall asleep though, unless I’m really tired. I need to do some sort of pre-bedtime activity to mentally prepare myself for sleep I guess would be the right term.

A buffer zone, if you will.