Luggage is a drag! Traveling is fun, but walking with suitcases is a drag! Luggage is especially challenging in historic European cities with narrow cobblestone alleys (such as the one you see below.) Who wants to drag a roller bag through THAT? Sometimes you don’t have a choice. My husband, Larry, and I have been traveling round-the-world since January. We tried to pack light, but we had everything from glaciers to tropical beaches to consider. That’s why our luggage includes thermal underwear, jackets, and scarves, as well as swimsuits, shorts, and sunscreen. And, of course, all the souvenirs we’ve picked up…