If your children have ever traveled alone (for sports, visitation, or college, for example), or with other adults (grandparents, friends’ parents, or a coach), you know that gathering information can be confusing and time-consuming. And if you travel without your children, there’s plenty to keep track of so that their caregivers can handle things while you’re away. Forms 4 Travel simplifies the process with its ready-to-fill-out documents that cover everything from emergency information to medical authorization to legal consent. The forms are packaged on convenient USB flash “Travel Stix’’ ($28.95 each) that are about the size of a thick credit card. Forms are available for globe-trotting pets, too, at forms4travel.com.