Signing up for on-line services is a good use for "virtual account numbers". This is a feature offered on some Citibank and Discover credit cards (maybe others) that allows you to generate a separate credit card number that's billed to your original account. The nice thing about them is that once a virtual account number has been billed by a vendor, it does not accept any charges in the future except from the same vendor. So if the account is compromised, the credit card number is useless to the person who steals it.
I've got an account with Bank of America and they have that feature as well.
Downside, none of their service reps even know it exists, even worse they are slowly phasing it out (making it more and more difficult to find) even-though it is a feature I absolutely love.
Get the Fidelity Amex from FIA (aka BofA). It's one of the few genuine 2% cashback cards, has no annual fee, no forex fees iirc, and lets you create "ShopSafe" numbers.
It has a forex fee, just called about it before a trip. Something like 2.5 or 3.5%; my CapitalOne card didn't so I just used that instead.
Haven't found the ShopSafe numbers yet; I'm going to look for that now that you mentioned it.
Overall great card to have, because besides the 2% back on all purchases (if you deposit the money to a qualified Fidelity account) it has a bunch of the perks like rental car coverage, theft insurance on recent purchases, and doubled warranty, up to 1 year.
