The very first thing I do is put on a very inexpensive pair of slippers that have a rubber or some sort of sole other than just fabric - wouldn't want to walk in the bathrooms with just fabric as a sole.

If you're traveling with someone, you may want to play Scrabble. They do make a very small sized Scrabble games with magnetized parts.

On international flights the movies are free and there's other video programs to watch as well as a selection of music.

Or you could read a travel book about the cities you'll be visiting.

Hope this is of some help.

Cheers, Rose - Los Angeles