DIY: Quick Solution to a Door Draft
Referenced from BusinessInsider.com
Problem: Cold air is rushing in from underneath your door, and warm air is rushing out.
Solution: The draft snake, adopted during the Great Depression era, is one of the easiest ways to cut back on energy waste. A draft snake can be easily made by rolling up a towel or filling up a pouch of fabric with kitty litter or sand, advises The Daily Green.Or you can buy one pre-made.
Money/Energy Saved: According to the U.S. Department of Energy, drafts can waste 5 to 30% of energy use per year.