Dexter cattle keep coming up as an ideal homestead breed; during the LIA in Europe many cattle were lost to the cold, torrential rains [hoof rot], and lack of feed. A thrifty bred would seem to best. Tamworth pigs are also an good homestead choice; a hardy bacon type grazer.Six years until the projected worst - more than enough time to start a raised bed gardening system, and put in some dwarf fruit trees that start bearing in just a few years (we've gotten ours from Stark Bros for decades) and berries. Even those with a tiny yard can do something. We're changing out our raised beds from wood to metal, and putting hardware cloth on the bottom to help keep mice out of root crops. Stocking up on mouse traps would be good. This winter's colder temps have increased the mice in our garden/chicken area. Fortunately the chickens love mice, alive or just trapped.
We have Irish Dexter cattle, and we're bringing down our numbers while keeping most of the smaller adults. For those considering goats/sheep for meat, milk, and/or fiber, suggest actually trying the meat/milk if you haven't yet. DH can't tolerate lamb, while I love it. I've heard that from a number of goat owners....love the animals, hate the meat. Now is the time to find what you really like, and choose that if you're planning on livestock. Nigerian Dwarf goats are a great size and produce meat and milk. Fencing is a huge hurdle with smaller livestock though, and predators will visit frequently in colder weather. Rabbits are good, too, as are chickens, ducks, and quail. Also, plan now for hay. It will take a LOT of hay to get through colder winters. We went through quite a few round bales and bought supplemental squares to tide us over during the worst of the cold...and so did everyone else....it was selling out quickly. Pallets and tarps will work nicely for squares if there is no barn space.
If you have a wood stove or fireplace (not the best, I know), now is the time to plan for firewood. I've seen neighbors doing that lately, and we should be just about out of winter down here, so I think people are taking this seriously. We're working on our deadfall now, marking trees for thinning as future firewood, and starting to plant young trees/seedlings for the future....we're just fortunate we have some wooded areas on our place.
Warmer clothing, extra blankets and comforters, a deep pantry, the list just goes on and on....six years, if we get that much time, is a blessing not to be wasted.