Well, I know that some of you ave laid in large stores of dried goods, but there are a lot of things other than that and canned items you can store quite well.
I have been visiting the local farmers market and the prices fianlly got where I wanted for squash and potatoes. If I had not grown so many I would ave bought onions, cabbage and carrots as well.
Just about anyone can create micro-climates in their own home adequate for long term storage of any of these. C. Maxima squash will keep, if the right types, for up to 4 months if warm and dry. C. Moschata can keep for up to a year in the same conditions. Check them regularily and process any down that start to go. Maximas will get a soft spot, while moschatas will start to weep a sap looking liquid from old bruises. Potatoes, especially russets, will keep in wet sand or peat moss in a cool damp environment for quite a long time. The same for carrots and beets. Apples like it cold but dont keep wtih the others unless you have great ventilation as they apples give off a gas which will get your other vegetables sprouting. (btw, an apple in a paper bag with unripe tomatoes will get them red faster)
Also, for the backyard gardeners, Burpees carries a bushing C. Moschata (butternut) and Bakers Creek has a bushing buttercup (C. Maxima) if you are looking to maximize small space production and can pay a lot of attention to your plants. C. Pepo are common in bushing varietes but no where near the storage capability of the other two.
As far as gardening goes, look to your local extention offices for agriculture historically and find shelling dry beans. (store practially forecver, and aclimated to your area) I grew two Hidatsa/Mandan varieieties this year and fewer than 100 seeds of each produced in excess of 4# of each. They taste great too. The only bean that outproduced them was scarlet runner which will give me about 3# of seeds from 12 plants.
If you have the room, try an old regional indian variety of corn. Figure a minimum of 200 plants with 400 (op) being better for optimal pollination and genetic variation. No grains produce close to what they do for area required, and threshing is simple, and like beans, just have to dry them and store them.