My situation is confusing also, for my hubbys business, we use his citibank advantage, we fly to St. Maarten every year, so buying 4 tickets which works out to be anywhere from 1600 - 3000, so those free seats are awsome!!!
Then for personal, we use my Citibank Advantage (gotta get my miles!!), my Starwood AMEX, mostly at Costco because they only take AMEX, if I am ordering online, LLBean I use my LLBEAN card for free shipping, and really all other online purchases are on my Disney Visa. Now if they reopened the
Disney Store in our local mall, I would probably use it more often, but between the Disney club Discount (which todays is the last day) and some of the sales and free shipping, I guess I really don't miss the store, just more convenient if you have to return something!
I also don't use debit cards, for one, if you dispute something, they already have your money, and two, say for car rentals, I don't think you have the insurance you get with a regular card. My understanding is even if its backed by visa or Mastercard, that only gives you overdraft protection, but I may be wrong on this!