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Forget those colorful and cute but entirely wasteful Post-It notes and get your hands on some of these IE-TAG sticky notes. Comprised of paper converted from wood wastes taken from houses, they are extremely eco-friendly.

Created by Shibuya-based Naruse-Inokama Architects, these IE-TAGs sticky notes also rival Post-Its' cuteness by taking the shape of homes themselves. For your information, the 'ie' in the name means 'house' in Japanese. Now I just need to figure out how to get my hands on these notepads.