According to Paper 360° magazine, North America accounts for 58.3 percent of worldwide paper cup consumption—130 billion cups to be precise. To me, that’s a pretty good reason to stop getting my morning coffee in a disposable paper cup. Lugging a big stainless steel mug back and forth can be a pain though, but after hunting around I found this collapsible cup from Flatterware. When not in use, it flattens down to about the size of a small flapjack, making it easy to store and carry. It holds 12 ounces of hot or cold liquid, is BPA free, and doesn’t cost much. It isn’t without flaws though, like the absence of a lid for use when the cup is full, the somewhat flimsy material of the cup itself, and the unnaturally large base. But it’s a great concept and definitely worthwhile if you are in need of a commuter mug.