Three-free polish brand Zoya is offering up some serious Spring cleaning incentive. Go on a shopping spree on the company's site, selecting anything from six to 24 polishes, and enter the code ZoyaEarth2013. You'll get 50 percent off your order.
Then, once your polishes arrive, send back the same number of your old polishes and Zoya will dispose of them properly. Feels good, huh?