I have been thinking of doing a small "weekend" get away too. I have never done it before and was wondering were do you set up your tent?
What I would do is find a patch of woods or land that showed no signs of being used, and camp out of sight. One of the things I always did also is listen for dogs barking before setting up camp. If you can hear a dog barking, they can hear you camping. And search for a campsite at least an hour or more before sunset, that way your not stuck taking a poor spot.
Stealth camping always starts a lively debate here.