For many years it was about three miles each way, most often bicycled. Now it's zero.
Friend of mine recently put a room in his house up for rent; a prospect now commutes 60 miles each way to her presumably $15/hr job. Lessee, she puts in a 10 hour day vs townies' eight (darn right the commute counts as work time) plus only gets paid for seven after deducting for fuel. Pretty raw deal IMHO but there sure are many who think it's worth it. :/