Sometimes when you need to be towed or pulled by another vehicle the need is urgent. Like when you are stuck at the top of a long steep hill or when you are about to toll over. In those cases you may need towing help immediately.
Your tow strap, and anything else needed to attach your strap should be within reach of either the Driver or Passenger, not in the back of your vehicle. (I keep mine on the floor behind the passenger seat.) If you need a Shackle or other device to attach your strap to your vehicle it should also be easily available. Loosen the pin on your shackle before the run. Use wire or some other device to keep the pin from coming loose on the trail. (I use Bungy Balls.)