If you're looking for a vacation from the high cost of gas, consider going on vacation: To lure guests, some inns and big-chain hotels are offering free gas cards to those arriving by auto. A good place to start: Visit www.bedandbreakfast.com and click on "B&B Specials" for a list of incentives by innkeepers in the United States and Canada. If you prefer the chains, ask about promotions when booking. At some Best Westerns, a three-night stay gets you a $50 gas card; when booking online, use promotion code Gas50. At some Hilton Hotels, you get a $20 gas card for each night’s stay through next March.