You don’t need a special contractor to make your home more energy efficient. In most cases, it takes less than two hours to perform a few home “hacks” (detailed below) that can save anyone, from dorm-dwellers to apartment renters to homeowners, upwards of $135 a year.

And with Earth Day just around the corner, these tips are not only good for your wallet, but the environment as well.

Switching to LED light bulbs can give you the biggest bang for your buck. In fact, many electric companies or municipalities offer rebates or credits for switching to LED lights.

  • Savings: $21.60 per year
  • Time to complete: 30 minutes or less

Switching to an energy-efficient showerhead can save at least HALF of the energy required to heat the water used for the shower itself.

  • Savings: $66.96 per year
  • Time to complete: 30 minutes or less

Insulating your hot water heater pipes, which will cost less than $2 and can save you about $7 a year. Also, approximately 40% of heating and cooling air can be lost from poorly-insulated duct-work.

  • Savings: $7.32 per year
  • Time to complete: 15 minutes or less

Using Smart Power strips to prevent vampire draw, or block idle electronic devices from sucking electricity while they’re plugged in.

  • Savings: $9 per year
  • Time to complete: 15 minutes or less
  1. Installing faucet aerators in your kitchen and bathrooms can help cut your water usage without compromising flow, for a cost of about $18.
  • Savings: $32.28 per year
  • Time to complete: 30 minutes or less
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