How To Keep Your Home Warm Without Touching Your Thermostat

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Get insulated curtains
Invest in some insulated blackout curtains. They not only block out light to help you sleep better, but they also help trap warm air inside. So if you use the trick of opening curtains to let the sun in and close them at night, these curtains will do double duty to keep warm air exactly where it is. Some even block noise, for a better night’s rest.