I’ve been traveling over the last couple days and just saw this “Why struggle with heavy baggage? Dragging suitcases through busy airport lounges is tedious, backbreaking work – but it doesn’t have to be that way”. http://www.liveluggage.com/”>Motorized luggage. I’ve found airports don’t like wires, batteries and motors built in to things that normally don’t have them, at least not my little projects. I’ve been thinking of building a suitcase that powers a WiFi finder when rolled (vibrates the stick, beeps or handle glows) but realized I’d have even more trouble with my bags.