Things like milk, cereal, fruit - I know they have some stores on site but is the selection limited and with price gouges? Am I better off going to a near by store off resort?
We've used Garden Grocer for about 5 years now and they do a great job. It's easy to order, pay and they deliver right to your room ( Or they drop it off at the resort if you're not in). We get milk and fruit for the kids and Beer with Solo cups for me so I don't have to pay $9 a beer at the pool bar.
We also used Garden Grocer's services on our last trip and were very impressed with their service. We only ordered four twenty-four pack cases of water but they delivered five thirty-six bottle cases instead which was nice. Our groceries were in our room waiting when we arrived. This was especially convenient as we were flying in and not renting a car. Prices were a little higher than visiting the grocery store but it was very convenient and a lot cheaper then buying all our bottled water from Disney!