I'd thought about using Netgrocer in the past, but never did. When we flew we used a towncar service and made a grocery stop and could get whatever we wanted. I also brought non-perishables in a suitcase (granold bars, etc), but I don't think the airlines want a person doing that now. At the grocery store I stocked up on bottled water, muffins, fruit, etc to help with the restaurant costs. I then either rented a fridge or brought a small soft-side cooler that I stocked with ice daily.