The absolute best thing about the Chase Sapphire preferred card?

When you call, no automated menus, no entering your card number............someone just answers the phone. From this country.

This will get you 5% back on amazon rather than 3%.

slickdeals.net has a finance/credit card forum with some good info about various cards, and how to maximize your benefits when utilizing them. It's not a simple comparison, but there's good info there if you search around.

They also do sign-on bonuses with that 5% store card. It's $40 right now but I'm pretty sure I remember it being $200 around christmas last year. I got the 3% Amazon Visa last year before I knew about the 5% store card... I'm currently waiting to see if they do another $200 sign-on bonus and then I'm switching to the 5% store card.

Didn't look into the Store Card, figured it was just a fancy gift-card... overall looks pretty sweet, except for the 25% interest rate... better be damned sure to pay off.

Isn't that what we are doing with all these cards?

Citi Double Cash for every day use. Costco Amex for Costco related and gas/diesel at other stations. Since that card is going away, we'll replace the Citi with the new Costco Citi when it arrives and the Amex with the Amex Blue. And now I am going to be looking out for that $200 Amazon Store card offer!

If you do a lot of shopping on base, the USAA Cashback Rewards Plus American Express may be a good choice. It offers 5% on everything on base and gas, 2% on off-base groceries, and 1% on everything else. Here's the info on NerdWallet.com (best CC comparison website I've found) https://www.nerdwallet.com/blog/bank-credit-cards/usaa/

^That looks pretty good... The wife is balking at getting more than one or two cards... swapping one usaa card for another and then getting just one more might be the way to go.