There was a time when a "traveling bag" meant knotting a handkerchief to the end of a walking stick. Luckily, today’s satchels have gotten an image makeover. A good one will hold all the comforts of home. A great one will sweet-talk you into your own Virgin Atlantic Upper Class Suite. The Hermès Frontiere Pm Travel Bag, a chic, floppy bit of soft bull-calf leather, does exactly that, and like the Kelly and Birkin before it, this diva of bags is fast headed for single-name status. After all, what else would you expect from the company that’s been making classic handbags and the standard-bearers of travel accoutrements for more than a century?