Sand dune driving is a popular recreation in some places. But unless you drive a dune buggy to work, you'll probably need to take extra care not to get stuck if you find yourself driving over sand.
An important first step is to let some of the air out of the tires. At 15 psi, your tires will have a lot more grip than at normal inflation.
Turning on sand needs to be long, arching and smooth. Spin the wheel too sharply and you'll get stuck. If you do get stuck and then floor the gas and spin the tires, you'll get really stuck. Instead, calmly put the car in reverse and back yourself out of the jam.
And unless you want to deal with four flat tires, remember to put the air back in your tires as soon as you're out of the sand.