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If you must patch small cracks on your roof, using aluminum tape could do the job. Simply clean the area to be patched thoroughly, remove the tape's paper backing, and apply it to the crack. This creates a waterproof barrier over these cracks. To save on your energy bill, try changing your light bulbs. Compact fluorescent light bulbs and LED light bulbs cost more than regular light bulbs, but use less energy to light your home and last longer. You should see returns on your monthly energy bill in no time after replacing all