There was a time in the past when I would intentionally fly in and out of certain airports because of their shopping offerings (Schipol, Heathrow, Narita, you have made passing the time ever so delightful). I may soon be diverting my routes again as subway pop-up shops are proving the next trend in on-the-go shopping. The above pictured L'Oreal interactive cosmetic shop has debuted in the Bryant Park station and a Uniqlo shop arrived in Union Square mid October. In fact, the MTA is sponsoring an entire pop-up series! Tell me, dear readers, what shops would you like to see on your commute?