DVC reservations when made on points (either yours or rented) do not include housekeeping as it does at a regular hotel room. There is trash & towel on day 4 and a full cleaning on day 8. You can add daily housekeeping for an additional charge.
As for food etc:
Villas of Wilderness Lodge - you have the same options as the Wilderness Lodge which means counter service, and two sit-down resturants.
Beach Club Villas - you have all the options of the Yacht/Beack club plus the Boardwalk, Swan and Dolphin which are all nearby.
Boardwalk Villas - you have all the same options as the Beach Club since they are right across from each other.
Old Key West - There is Olivia's which is a sit-down and Goods to Go which is take-out. I believe there is also a snack bar by one of the pools.
Saratoga Springs - There is Artist Palette which is counter service. You are also very close to Downtown Disney and all of their food options.
The other thing that all DVC resorts have is a food section in their gift shops. You can buy milk, pop, beer, frozen foods, pizza, etc. to have in your room. You can also pre-order groceries (for a fee) and have them delivered to your room. Or you can make a grocery run.
Hope this helps.