I only use our credit card……
Also if you are cruising out of Terminal 1 I highly recommend you get the to port very early to grab one of the few spaces in the parking deck. Currently there are at least two ships going out of there and parking spaces have become a premium. Otherwise you can except to have to park, in the overflow outside, across the street in a gravel lot or on the other side of the terminal next to a warehouse with a long walk to the terminal!!
Since that makes us very early for our check in time we either sit in the car for awhile or walk over to Grills and have a drink and a bite to eat…