Airfares

If those cut-rate airfares sound too good to be true, it's because they often are. Doing the math reveals that some deals may end up costing you more than if you planned ahead and purchased a regular airfare. "A lot of these wild-and-crazy fares are gimmicks," said Tom Parsons, chief executive of Bestfares.com. "If you want the cheap stuff, you're going to get the weakest dates they have available and at the last minute." Consider JetBlue's $10 one-day, online-only deal on May 10, a promotion in celebration of its 10th anniversary. =============== Airfares