You can take a torch, or other cutter, and sharpen an axle. Drive it in the ground at an angle away from the vehicle and use it. You can stage two of them in line for additional if needed. You can put them side by each and put a panel/board between, buried in front. Don't take up any real room and come in handy.
You can bridge them across something for an anchor, etc.
I always carried two of them but they have gotten lost in the last 5 years due to other distractions.