Stay on the dark stuff (hard Pack) as long as you can. When you find a spot where you want to stay unhitch your toad and back into the spot. Keep your wheels as straight as possible, if you do need to turn don't be aggressive with your wheel cut. If you turn too sharply the tires will act as plows and you'll bog down.
Make sure you select a spot that is far inland from the waterline. The tides can come in and flood your campsite if you get too close. You'll see how far back other RVs are parked.
Before you leave, dig out a shallow (2in deep) runway (at least 2 feet long)in front of each rear tire. It will give you a chance to get a run when you pull out. The goal is to get up on top of the sand so don't spin the tires. If you do begin to dig in stop. The deeper you bury the MH the harder it will be to pullout.
Keep front wheels straight and don't turn until you get back to the dark sand.