On stretches of firm sand in the desert, you can travel in relatively high-range gears.
Remember that the sand’s surface crust will be stronger, and appear dryer, in the cool of the morning.
Driving in damp desert sand after rainfall can be easier. Flowers blooming overnight will also help bind the sand together.
If you encounter dunes, go around them not over them.
Should you get caught in a sandstorm: turn the rear of your vehicle to face the wind, turn the engine off and wait for the storm to pass.