Back-to-school is a wasteful time of year. Stores lure moms into buying everything new, resulting in millions of pounds in waste. Help thredUp green back-to-school by swapping instead of shopping and when you sign up with ThredUp you will get a $10 credit instantly. What is thredUp you ask? thredUP is where America's busiest families conveniently exchange kids clothing online. You can list the boxes of clothes your kids have grown out of and swap them with other moms who need them. These are gently used clothes that you box up and ship off via USPS. Hurry - promotion ends Sept 1! It is easy being green after-all! Go here to sign up today and get your swap box.