Honey's always a good one. Never goes bad. Crystalizes, yes. But heat it up, and you can still use it.
My Ol' Pappy told me that when it crystallizes, heat it up and add a little water to get it to it's former consistency. He said once it was boiled it wouldn't crystallize again.
Brown sugar keeps well too. If it hardens up, a little while in an oven at low temperature will return it to it's granular form.
I've helped my Ol' Pappy can beans, tomatoes (maters

) and numerous other things. We put a teaspoon of salt in every quart jar (non iodized salt, I think it's specifically sold as canning salt). For small runs he has a wire rack that only holds about 7 jars sits into a large pot that goes on the stove. Mostly we have a large "wash tub" that holds 30 or 40 jars wit a couple of old towels used to place between the jars so they don't rattle against each other and break (the same purpose as the wire rack). Whether you can inside on an electric range, or outside over an open fire like me and Pap, you fill the tub or pot with water and bring to a boil, I believe you let it boil for about 6 hours, but I'll check with Pap. When you set them aside to cool you will hear them pop, that's the lids sealing. Tomatoes are skinned and boiled in a large pot to make tomato sauce, when they are boiling we pour them into jars and seal them while still boiling. If I can remember correctly he told me salt wasn't absolutely necessary, but it did help preserve them longer, even though ours is mostly just to get through the winter.
You can also dry most fruits and vegetables, Shuck beans is the one we mostly do. To do very large amounts we lay the picked, cleaned, strung and broke green beans out in a layer on a bed sheet. The bed sheet is lain on a car hood or metal roof of a shed, as the hot metal helps them to dry faster. Once dry Pappy puts 'em in the freezer and says they need to stay in there a couple days, but I'm not sure why.
Canning would be better if you don't see yourself with a ready water supply (i.e., walking a mile or two to fill containers) but dried goods take up less space and would be better if you expect to have a convenient nearby source of water.