An Idea for Commuters

This idea was put forward by my wife the other night (who commutes, by the way; I get to work from home). Anywho, she noticed that traffic is bad in both directions at both times of the day. So clearly there are people who live where she works who drive down to where we live to work, as she treks up to where they work. And surely there must be similar jobs up where she works as there are near us. So why not find someone who lives up where she works who has a similar job, and switch?