That sounds like a lot of fun!! Hope you have a wonderful time! Any chance you'll be dropping down into northern California from Alaska??!! LOL LOL Just kidding...

Leaving a list of their quirks and how much food to feed daily is a good idea, and any emergency numbers to post on the refrigerator.
We usually close most of our doors, so the kitties don't accidentally get locked in a room, or have access to rooms with lots of stuff to chew on (like the computer room!).
For the windows, when we leave, we usually have the blinds pulled up enough for the kitties to look out the window. Because, if we leave them all the way down, Marius has this tendency to climb inbetween and through the blinds, which really bends them out of shape! So, having them open partway is a good idea
I also usually put out extra water bowls.