We just returned past Monday from 7 nights and did a grocery stop. This was our 42 trips and over the past 5 trips, money has been about the same. I take 400.00 cash, use it at the grocery store, now there's just the 2 of us but we buy like there's no tomorrow, lunchmeat, pop, beer, wine, alcohol and snacks and it comes to 100.00.
We do not do the dining plan and upon check in we place our Discover Card for all charges, room, tickets, meals, everything to get the cash back bucks when we get home and get the bill. I most always come home with the leftover 300.00 out of the 400.00. We do not rent a car, use Disney transportation and everywhere on property will take our room key for charges. Wife and I split most meals and every day we have a pool picnic with our grocery supplies so our food bill on property is never over 400 bucks.