I recently discovered the hard way that the short stories in a New Yorker Debut Fiction Special Magazine I have (all caps because it's a capital way to spend like 8 bucks--if none of your friends or relatives subscribe) are all JUST a little bit too long to read on the john.
To clarify: not only are they too long for a trip of normal length--they're even too long for that trip you prolong because you like what you're reading, so that when you get up, you have to slap the feeling back into your thighs. I try not to have too many of those.
You know what makes great crapper reading? Franz Kafka. Try it.