Downtime

In general, do you have a strategy for dealing with long enforced periods of boredom? Say, if you know you're going to have a long layover between flights, or will be waiting for your appointment with a perennially late doctor, or have to wait on an endless line at the department of motor vehicles. Do you bring a book, or correspondence, or hope you'll meet someone interesting to talk to?

This week's theme is strategies.