This week, Nespresso kept Union Station commuters and travelers well caffeinated with its Nespresso VertuoLineTM Pop-Up, one of the first stop of a 108-days, 17 cities pop-up tour. The main goal of the pop-up tour is to introduce Nespresso's new VertuoLine system in the United States and Canada. Not familiar with Nespresso? In the world of single-serve coffee machines, it's kind of like the Apple to Keurig's Microsoft. Nespresso dominates the proportioned coffee market in Europe the way that Keurig dominates it in the United States. My mom's had a Nespresso machine for years. I would have loved to get one but I really don't drink espresso everyday. My husband and I didn't want to clutter ...