I have the best wife.
She just booked a (scarry cheap) hotel so that we can go to the SCTA's World Finals in October. I figure that we will bring the easy-up and a couple of tarps, coloring books, handheld video games to keep the kids busy durring any luls in the racing.
What can we expect?
It's been a while, but I've been on the salt for UROC's Hellfire before. Here are some I can remember
Stake down that easy-up. Gusts sometimes kick up later in the day strong enough to make them wander.
A jacket. The flats cool off a lot at night and can take time to warm up under the sun, so bring something warm if you're going to be wandering around during the morning.
Hats, especially big-brimmed ones that shade face and neck (fedoras, etc). That sun can get brutal, so the more you can block, the better.
Long-sleeved clothing/long pants are often recommended to keep the sun off skin. Remember that lighter colors tend to stay cooler under sunlight than dark colors.
Don't forget the sunscreen for skin not protected by clothing, and don't forget you'll get sunlight reflection off the salt.
UV-blocking sunglasses. With all the sunlight coming down and being reflected back off the salt, do your eyes a favor and block out those UV rays.
Lots of water. Should be a no-brainer, this. Also remember, alcohol != good hydration.
GPS (much easier nowadays w/ smart phones). While the site and path to it will probably be easy to find and marked, take care if you decide to drive around to sight-see. For large, flat spaces like the Flats, the curvature of the earth comes into play w/ the horizon. Getting lost on the Flats (even for a little while) is No Fun.
If you plan to be out late (past sunset), check the moon forecast. The moon is your friend at night on the Flats, things can get rather dark without it.
"Rights of the people that are not exercised on a regular basis, have a bad habit of being taken away from the people."