I found that most places that take a credit card (some don't) will take either VISA or MasterCard. I did not find anybody who takes Discover Card.

I stopped using AmericanExpress years ago when I found that few business' outside of he Big City places took the AE card. At least that was my experience.

Here's a tip from a friend who recommended taking your Costco card if you will be staying a while in a city that has a Costco.

Paul Near Seattle