CHARLOTTE, NC—After a long day of meetings and seminars, business traveler Patrick Hodge stayed up late Monday, closing the mini-bar in room 1815 of the Charlotte Marriott. "I'm usually a two-martini-then-hit-the-sack kind of guy," Hodge said. "But I was really wound up, and they had lots of those little bottles of my favorite liquors, so I said, 'What the hey?'" After closing down the mini-bar, Hodge staggered to the hotel's vending machine to beat the 3 a.m. "after-mini-bar rush."