Originally Posted by
Doohickie
Dictionary.com says "to travel regularly over some distance, as from a suburb into a city and back: He commutes to work by train."
In this case, "commuting to work" is an example, not the hard definition. You can commute other places besides work.
I like this definition. It doesn't leave out entire classes of people -- a big deal when 10% of the population doesn't have work to commute to.