While retail continues to spiral toward its ill-fated future, there are a few players giving the space a well-needed boost; off-price brands like T.J. Maxx and Nordstrom Rack (and, yes, Amazon) continue to grow.

Another one is jumping into the fray, sure that it can compete in a bigger and better way. ThredUp, a secondhand e-commerce company that's been around since 2009 and now processes as many as 100,000 items in a single day, is opening its first store in San Marcos, Texas, today, with four more on the way across the country before the end of the year.