I guess $30 is cheaper than a FedEx overnight, but still, are we incapable of carrying our own suitcases?

As to DUFL -- stupid, but stupider services have made it big (and, in so doing, become smart) in the startup universe. I think the service would be more useful if they provided clothes instead of tying up your own clothes. You send them your measurements (e.g., 15 neck/33 sleeve/32 waist/30 inseam/7.5D dress shoe) and they rent you generic but well-pressed business attire. They should also partner more closely with hotels so that clothes are unpacked and in your closet instead of in a cardboard box at the front desk.