7 ways your credit card can boost travel
If you're renting a car on your trip, it's a good idea to check your credit card before you buy the extra insurance that most rental agencies offer, says Matthew Bailey of Canadian Free Flyers, a Web-based newsletter that helps travelers capitalize on travel rewards programs.
"Most credit card companies cover car rentals with little or no deductible," says Bailey. "But if you buy the separate rental car insurance, then (the policy for your credit card) may be void."
Be sure to check with your credit card issuer on the limitations and rules.