I’d start with a lean frame, maybe using a simple A‑frame roof so the rain runs off. The walls could be packed with recycled insulation—old blankets or even foam board—then covered with canvas or a tarp to keep out the elements. For heating, a wood stove or a small stove built into the base works best; keep a good supply of firewood and make sure the chimney is clear. Keep the entrance low to the ground for insulation and add a small vestibule with a coat rack so you can keep the cold out. It’s all about simple, sturdy construction and making sure the shelter stays dry. What tricks do you use?