Stargazing may be the ultimate getaway, but if you're planning an excursion to a dark-sky site far out in the open countryside, be sure to bring a cell phone and either a car cord or an extra battery. You may need it in an emergency.

Let somebody know in advance where you're headed, what roads you intend to use, and when you expect to return. If you're close to being the last to leave a site, ask another person to wait until you're sure that your car (and theirs) will start.