Today (and every day) I'm thankful for the MARC train.
I live in Baltimore and commute to College Park. This would be a soul-crushing commute, were it not for the MARC train. My house is a short walk from the Camden stop, and my office is a short walk from the College Park stop. It's not a short commute, but it is very convenient. I can spend the time on the train reading, or hanging out with other MARC commuters, like April, and I am thankful.