Tip #3 Save money and natural resources. Did you know you can save on your heating bill and save energy with two simple measures? (This tip from Green Team Tips. Check out their site of TONS of other great tips!)
If you're able to program your thermostat, set it to a lower temperature at night and while you're away during the day. Otherwise, just turn down the heat before you go to bed and before heading out for the day. Before assuming you will be too cold, just test it out—put on a sweater, reduce the heat by a couple of degrees for one week, then see how you feel. Honestly, who doesn't love to snuggle up in sweats, a hoody, and fuzzy socks!
Another easy way to save energy and money is to seal up windows, gaps around air conditioners, and other cracks with some inexpensive products found at most hardware stores. Unroll "rope" caulk (made of putty and sold in a long coil) and press it into the gaps, or apply heat-shrinkable plastic sheeting to your gaps with double-sided tape and shrink it to fit with a hair dryer. I'm seriously going to try out the plastic sheeting!