With fall upon us, thoughts turn to the great outdoors. Plans for hiking, camping, biking and even skiing should start popping up on the calendar. Whether you are a seasoned expert or a novice, there is always something new to learn. Turn, then, to REI’s Expert Advice pages, where you can find how-to articles, shopping advice, checklists and more. If camping or hiking is your plan, they offer articles about how to choose a tent and the 10-plus essential items you need to take. They also provide long lists of how to choose particular items, and more detailed information about skills and knowledge needed to pull off your first - or 50th - backcountry trek. If you’re planning on tent shopping, besides offering a large selection (like the Sierra Designs Moken 4-person tent pictured) they offer interactive 3-D views of their top-selling tents.