Well, First I have to say I'm good at paying off the total balance at the end of each month. Then I'll go on by saying...
Old Navy Visa
Target Visa
OCCU Mastercard
Bank of America Card
US Bank Visa Check

...I think that's it...

I have two AMEX which I paid off every month when I have a balance and a rarely used Mastercard.

I have 4 credit cards:

• Old Navy which I have never used but keep open for credit history purposes as it was my very first credit card
• Bank of America Platinum Visa which I haven't used since 2006 but keep around for backup
• AMEX Blue Cash which I used primarily for 2 years until last summer
• Chase Amazon Visa which is my primary card now as we have cut spending to the point that it would take almost a year just to reach the $6,500 threshold required before earning 5% cash back on the AMEX, which starts over every year