Recently, I won tickets to a cage fight in St. Louis (seriously), so I packed my bags, hopped on Amtrak, and played house guest at a friendâ€™s place. It’s a little thing, but I usually end up plugging my phone charger into the first available place and letting the cord and phone pool on the floor, hoping it won’t get stepped on or mistaken for a chew toy. No longer, fellow couch surfers! The Mobile Device Charging Holder from Driinn, $10, has quickly gone to the top of my travel essentials list. It’s a simple idea that turns any wall socket into a convenient, mess-free charging station. — Katie D.