Leave the wife at home and find a stoker that likes beards?
I am horrible for not shaving (anytime), but at least my woman couldn't give 2 cents worth of damn if I shaved or not. I actually switched careers partly due to having to shave for work everyday for safety reasons...
Best solution I've found for shaving on tour is getting a shave once in a while at a barber, but its only practical in really really cheap countries. Next best solution was carrying a shaving stick (like a bar of soap) and a couple good disposable razors. I shave when people stop taking to me (about every 3-4 weeks)