If you're like me, you believe that there are two kinds of airline bags: carried on, and lost. And while the airlines are doing a better job with baggage these days, I still don't check bags on domestic flights. I FedEx them or UPS them (or there are 15 other courier services that will do this job). And for $40 to $50 -- not much more than what the airlines want to charge you for losing your bags or making you wait endlessly at baggage claim -- yours get picked up from your home or office and will be waiting for you in your hotel room by 10:30 the next morning. (Smart travelers send luggage two to three days ahead and get a big discount on shipping. Same thing for the way back home -- because who cares if your dirty laundry arrives three days after you do?)