Costco and Citi Visa
We have at least 15 credit cards that we've accumulated over the years, (many of which we don't use, but I know closing cards can affect your score). In addition to AMEX we have Chase Visas, Discovers and MasterCards. This doesn't count all the store cards like Old Navy, Overstock, Kohl's and others.
Ha, I remember way back in the day when we couldn't even get a credit card until we bought our first house. I guess the more you owe, the more credit you can get.
Of course, the only one we don't have is a CITI card. I've heard awful things about them, but will have to apply as we like to shop at Costco a lot. What do the rest of you think about Citi? Granted, it's pretty far away, but time flies.