Get rid of the air in your tires! 4-5psi. Have a compressor or OBA with you to fill them back up. Don't go alone, go with a group of other rigs. Tow hooks front and rear. Recovery straps. Winch would be good. Shovel. Have a plan. Leave instructions as to where you are going and estimated return time with someone at home. Bring sleeping bags, or something to stay warm if you get stranded.
That's a good start. Happy Snow wheeling.
EDIT: I just read local sand pit...DERP. Well, alot of the above still applies!
~Pacific Northwest 4WD Association~
2004 TJ X, 4.25" combo lift, D30 Eaton e-locker, D44 ARB, 4.88's, 35's,
10 Factory, Currie, TW, MCE, JCR, UCF, Savvy, etc.