Too many:
1 I get airline miles with
1 I get Citgo gas rebates with
1 I get Amazon points with
1 is a Paypal card so I use it for Paypal stuff
1 I get cash back with
1 has a really high limit so if I need to buy something absurdly expensive, I have the CC protection
1 has 0% interest
1 (I swear) has pugs on it so that's why I got it
Except for the 0%, nothing has a balance though.