Here's what I suggest - what I did on our trip to Disney last fall:
Box up and mail non-perishible food (stuff like crackers, pop tarts, raisins, animal crackers, etc. - not drinks - they are too heavy and the cost for shipping skyrockets) down to your resort ahead of time. I also mailed along diapers/wipes/other toiletries that we would use up and know I didn't have to lug back home. I packed it up io a large empty Dell computer box from work and shipped it FedEx for about $10. (I mailed it directly to CBR and put a note on the outside "Please Hold: with our last name, reservation #, and date of arrival. ) It was SO nice not to be lugging all that stuff to and from the airport and they just brought the box right to our room when we called for it after arriving.
For drinks, have your airport transpotation stop at a local grocery store. We picked up alcoholic beverages, but I also recommened buying juice boxes, milk, fruit/ etc.- as they quite expensive when buying single servings at the resorts/restaurants every day.
We were lucky in that a coworker of my husbands picked us up at the airport and transported us to the store and lent us their cooler. But if we hadn't had them, I was planning to buy a large soft-sided cooler on wheels at Wal-Mart and use it as luggage, then empty it at the resort and fill it with the perishibles.
If you don't already, find a town car service which includes a grocery stop as your transportation from the resort to the airport -and use it- it really helps save ALOT of money in your food budget.