Everyone has a bag these days, whether it’s a backpack, a messenger bag, a handbag, or one of the more fashionable descendants of the fanny pack. Despite varying designs and sizes, almost all bags have two things in common, they have handles or straps, and you wouldn’t want to leave them lying on the floor in offices and coffee shops. Some tables in these public spaces now offer hidden bag hooks under the table, but these seemingly ingenious solutions come with their own drawbacks. A...