Have: tide charts, first aid kit, extra fuses!!, flashlight, flat repair kit.
Not a must have but it kinda makes it a bit easier for ya: pep boys sells a valve stem puller its like 99 cents. On the oppisite of the the valve stem puller its got two holes, you can just screw that on to air down, so you dont have to be hunched over the whole time. There are also commercial deflators out there oasis n such but you cant beat the .99 cent ones imho. Just keep an eye on the tire and when you see the bottom begin to bulge out a bit take your pressure. Mine take 17 seconds a piece to get down to 12-15 psi that way.
And HAVE FUN!!!