One of the most highly anticipated events of the year is the big family vacation. And then there are those much-needed weekend getaways. How these family outings play out often has a lot to do with the planning that goes into them (and the gear you pack). What follows is a guide to some of the Web sites and portable gizmos that can make your life on the road much easier and your vacation a much-needed recharge instead of an energy drain. Essential Web Sites: * When planning a trip, stop by Rough Guide's site. Publishers of the hugely popular travel books, the site reproduces much of their print content as well as more up-to-date info.