I use several of the means and methods listed in the poll.

We typically shop once a week, however we do quarterly stock runs and stock up on staple stuff from the warehouse clubs. We also grow a lot of our own veggies, eggs and chickens are right here too. There are many foods I order on line because they are no longer available locally, things like Blackstrap Molasses, spices and other odds and ends. I have ridden the 14 mile one way trip from the feed store in the town up the road with a 60# bag of chicken feed laid over the top of the panniers, which were loaded with another 35# of stuff... long slow trip on the uphills, hauling ass on the downhills. FWIW my dog is a connoisseur and we buy his food in 5# bags. (actually a 5# bag lasts over a week, he is not a huge eater)

Aaron