I'm probably an ideal candidate for meditation because just the thought of it is nearly unbearable. "Wasting a whole ten minutes doing nothing?!" But it's hard for me to get past the feeling that it's a waste of time. As someone who is on public transit for two hours a day, and an owner of a nice pair of noise cancelling headphones - I wonder if I could make use of that time by doing this. Guess I'll give it a try.
At a basic level, meditation is literally practicing letting shit go. This is useful, for instance, when people write bad code that really - you get the idea.
Note: Definitely do NOT try to "squash" thoughts. Let them show up and float on away. This is not a goal oriented activity; you don't have to maintain an empty mind for two minutes, let alone two hours of transit. You'll notice more of what to do as you do it more, if that makes sense.