You can tell a lot about person by looking at the bag they carry. A few years ago in New York City there was an explosion of women using those little pink-striped Victoria’s Secret bags (in which one originally carries her unmentionables home) as an everyday utility satchel. I saw them on the train, in my apartment building, everywhere, really. Morning, noon, night.
Back to how bags can give you insight into people. If you see someone carrying a Modell’s bag there’s a good chance he or she has interest not only in sports, but in sporting goods as well. If carrying a MOMA (Museum of Modern Art) bag, it is likely indicative of a cultured interest in the fine arts. Prada, Gucci, or Vuitton might mean money, though between the real deal Holyfield and the cheap Chinatown knockoffs it could be hard to tell. Bags from the hipster outfits “Brooklyn Industries” and Manhattan Storage (in that order) display…well…your real (or imagined) hipness. If you’re on the train with a tiny orange plastic bag, you’re a consumer of Chinatown foods (and apparently savvy enough to avoid fake Gucci). Backpacks are for diligent students or diligent train bombers, etc.