Read review of the old Carnival cruise drink coupons (on paper) compared to the new system of paperless Carnival drink coupons. These are your drinking money "digitized" into a "Cruise Cash" account.
Basically, the new Carnival "Cruise Cash" account is a photo - and bar-credit system for discount pricing on Carnival bar menu drinks. In simple words - these are the Carnival Cruise Lines' new alcohol and soda coupons (plus photo credits) pre-purchased through the Bon Voyage/Fun Shop department. If you don't like pre-purchasing drink coupons, but you do like very much to drink, a lot, you can consider the option of buying the new Carnival Cheers program (all-you can-drink alcohol package). And the "Cheers" package can be purchased on the boat itself.