One year, we returned with 28 bags of trail mix. Another year, it was boxes of fudge.
It is just too much food. Our "problem" is that we like TS/signature restaurants, but don't get 3 or sometimes even 2 courses per person.
Our actual cost of food and drink, including tax and additional tip, was about $50 less per day (across all people) than it would have cost for the deluxe dining plan. That included getting whatever we wanted on the menu, and alcoholic drinks when we wanted (which was not always). We used TiW. We went to: 1900 PF (B), BOG (D), Plaza (L), WCC (D), Satuli Canteen (L), WCC (D), Akershus (D), CP (B), Cali Grill (D), Wave (B), had most breakfasts in the room, and got snacks whenever/wherever we wanted, including using snacks for lunch.
Using the handy dandy calculator, on the DxDP we would have paid an additional $400+ in tips, and still had 12 snack credits left over. On the regular DP, we would have paid over $1000 more OOP due to being 24 TS credits over, and had 16 QS credits left over.
So, I'm sold ... on paying OOP. Maybe we'd consider it with 2 kids on the DP, maybe not.