If you’re warm to the idea of keeping your house comfy, but cool to the thought of wasting energy dollars, check your insulation.
Like just about anything else, insulation can deteriorate over time, becoming less efficient at retaining your home’s cold air in summer and warm air in winter.
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Angie Hicks is the founder of Angie’s List, a resource for local consumer reviews on everything from home repair to health care. Follow her on Twitter at @Angie — Hicks.