Camping is the best! I love it. We already have reservations made to go tent camping one weekend this summer.
As for pointers for new campers...
First off, do some research online about camping. There are tons of sites with checklists for packing and information about campground etiquette and picking out a site. Some campgrounds let you bring alcohol; some don't. Be aware of the regulations for noise. You may be kicked out of the park for being too loud at night.
Try state parks. They're usually kept up really nice and have nicer bathrooms and showers.
Some parks have rules about what kind of wood you can bring into the park with you for campfires. The wood they sell in the campgrounds is often the cheap stuff that will burn up quickly (and it's usually expensive, too). Try to find out if you can bring your own, and if you can, do so. Learn how to build a campfire before you go.
If your trailer has a bathroom in it, learn how to use the dump station at the campground and how to clean out your sewage tank. Learn how to winterize your trailer's bathroom.
Bring a couple of long extension cords, a piece of old outdoor carpet for outside your trailer door, and a huge tarp. You can do lots of good things with a big tarp. Tie it to some trees and make a bigger awning, for example. If your trailer has an awning, bring some Christmas lights to attach to it with clothespins...then you'll be like one of the old pros.
While we're on the subject of clothespins, bring some nylon rope for a clothesline.
It gets cold in the summer at night, especially in the woods. Bring sweatshirts and other warmer clothes for at night.
Above all, have fun and be prepared for anything. Camping is an adventure.