When I get the urge I've been known to run all over the house looking for something new to read while in the bathroom!
We have a magazine rack right by the toilet so if I'm not reading a book ATM I can grab something to flip thru. I don't know why but it's so much easier to concentrate on stuff while you're in there. Sensory deprivation or something. I usually end up sitting there until my legs go numb, too. Guess I need to get an old lady cushioned seat!