I remember at check-in last year they needed a credit card to have on file. Which i totally understand, but i forgot if they held a certain amount or do they just take a copy of it. (so do you have to have a certain amount on the card) I just opened a 2nd checking account and have a debit card that I keep a small amount of $$ on. So if someone was to get ahold of the number my whole main account wouldnt be wiped out. I am bringing cash with me so the only reason why i need the card is for check-in.