It’s that time of year again! Spring is the perfect time to brush away the dustbunnies, thrust open the windows and refresh your whole house. But as you may know, the tools and cleansers available to help you do that aren’t always the most environmentally friendly. Luckily, we’ve got some great tips on how to green your spring cleaning using technology — from greener vacuum cleaners to iPhone apps that help you find eco-friendly cleaning supplies!