I do not use credit cards, we carry cash or travelers cheques for everything. I do not have to pay for TC at my bank. When planning my Disney trip, I make an envelope for everything that will be OOP. We do the DDP, so that means an envelope for Mousekeeping, tips at TS restaurants and any restaurants that will be OOP, like CRT and other activities like mini golf. As I save for the trip I insert the cash into the envelopes, now one week out I have ALL my envelopes filled (guesstimating on the tip for TS), lPLUS almost $600 in cash and $200 in travelers checks left over from our last trip as well as $100 in Disney Dollars received from my Travel Agent. I even have figured out our travel expenses and have an envelope for our gas and food while on the road.
I have a separate Disney Checking acct, in that I have the money for the hotel cost for the entire trip, this way I can pay with my ATM/debit card. I will carry my household ATM/debit card just in case of an emergency. Any money left over will go back into my Disney checking acct with the exception of the travelers checks, they go back into a lock box for the next trip.
I know it seems like a lot of work, but I enjoy the planning and I am secure in the knowledge that I have planned enough money for the entire trip.
I do not have to worry about paying a bill upon our return, I only carry a little cash each day and put the envelopes and extra cash into the room safe. This suits our lifestyle.