Cards that I use for daily purchases:
BoA Platinum Plus MC
Chase Flexible Rewards Visa
Cards I use for special big things, like Travel:
Amex Plat and Green Charge Card. (extra rewards points for travel/online shopping through their site + the option to redeem points for travel and shopping through their site)
Cards that I don't really have in my wallet, and use just for small stuff so they stay active:
Cap 1 "Platinum" Visa
1FBUSA "Gold" Visa
HSBC Direct Rewards Discover