On the traveling side of the internet, reviews for new gadgets abound. Compression bags! Fold-able water bottles! Amazing pouches that hold everything from your passport to a portable phone battery pack, which you also absolutely need! A microfiber towel that folds into almost nothing! And a second one to make up for the fact the towel is only two square feet! An electronic tracker, in case you lose the towels! (…And then we pass out.) Okay, some of these gadgets can be pretty useful. But not all of them, and not all the time. Here’s an honest look at when you might actually need some of these weird and wonderful things.