One of the most important off-road driving techniques is "stopping in gear".

As well as you start in gear by simply turning your key - you can stop you truck by turning the key off. A very safe method in challenging environments.

Rather than stepping on clutch and brake, and then stopping your engine, you can simply turn the key to "off".

Works in all cars with 4WD low range. Should be done in 1st and reverse only. However, it can be done in all gears to stop your car (lets say your brakes failed you).