I will probably have at least 20 books, lol (I have a Sony Reader, so I can just load up a bunch).
I won't have my laptop, and don't want to run my Blackberry onboard because I'm not sure how many opportunities I'll have for charging it back up when I arrive (we'll be staying at a facility without electricity except occasional generator use), and I want to make sure it's available in an emergency.
However, I actually really like the coloring book idea!! That's a nice "brainless" activity for those times when I'm too tired to think but not comfortable enough to sleep. I'll have to see what I can find.