I've been listening to Dave Ramsey for a while and reading up on Warren Buffett. They both say stay away from credit cards. Nothing but trouble with very few advantages. The only good one I can think of is renting a car when you're in a jam, but some places would rent you one if you make the full payment ahead of time.
10 Best Money Tips From Warren Buffett of All Time -- The Motley Fool
4. Avoid debt, especially credit card debt
Warren Buffett built his wealth by getting interest to work for him instead of working to pay interest, the way many Americans in debt do. "I've seen more people fail because of liquor and leverage -- leverage being borrowed money," Buffett said in a 1991 speech at Notre Dame. "You really don't need leverage in this world much. If you're smart, you're going to make a lot of money without borrowing."
Buffett is especially wary of credit cards. His advice is to avoid them altogether. "Interest rates are very high on credit cards," Buffett once said in a news release. "Sometimes they are 18%. Sometimes they are 20%. If I borrowed money at 18% or 20%, I'd be broke."
I cancelled both of my credit cards and I don't have to worry about missing a payment.