Heaps of great information, thank you both.
My hope is to get an AMEX Blue Cash Preferred for regular spending, and find a strong Visa or MasterCard (or maybe Discover?) to do spending where AMEX isn't accepted.
My wife and I both shop at Costco so a Visa is a big potential, as long as I can find a great card. I'm new to this so your help is invaluable.
Thanks again!
