[larrysalibra]

If you're considering personal cards, USAA has 2.5% cash back on everything if you have a bank account + $1000/month direct deposit with them. http://usaa.com/limitless (limited to certain states)

[mrep]

You can only do that if you qualify for USAA though which means you need to be:

Active, retired and honorably separated officers and enlisted personnel of the U.S. military.

Officer candidates in commissioning programs (Academy, ROTC, OCS/OTS).

Adult children of USAA members who have or had a USAA auto or property insurance policy.1

Widows and widowers of USAA members who have or had a USAA auto or property insurance policy.