April 22, 2015 marks the 45th anniversary of Earth Day.

In the last 45 years, people just like you and I have made small commitments to save the planet, which today adds up to more than one billion “acts of green" according to Earthday.org.

As Earth Day grows and more events are planned and more of us take part, our efforts help us save money even as they help reforest and restore, replant and revive. Read on to learn about all the ways you can participate in Earth Day this year!

Take the energy reduction pledge and save

Earth Day is a great day to take the pledge to reduce your energy consumption. Online, all it takes is entering your name, email address, and zip code into the form to show your support.

Next, you can visit the Earth Day Energy Center, which uses your zip code to help you analyze your energy usage and find the savings.

Over time, taking this pledge and doing the work to analyze your energy usage can translate into lower energy bills, federal tax credits, and other savings opportunities—just more proof that helping the planet helps us too!

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Use the free footprint calculator

The Earth Day Footprint Calculator is another resource provided by Earth Day 2015 to help you analyze your energy usage and recycling habits. Until I took the quiz, I really thought I was living a pretty sustainable life! Now I know what I need to work on.

Bonus tip: You can get your initial score and then go back and retake parts of the quiz to see how you can adjust your footprint.

Recycle your e-waste for free

Electronic waste, or e-waste, is defined as "any electronic device that is outdated, obsolete, broken, donated, or discarded at the end of its useful life. This includes cell phones, computers, laptops, PDAs, monitors, televisions, printers, scanners, and any other electrical device."

E-Stewards has partnered with Earth Day to help you easily locate your nearest local e-waste recycling facility. Not only does it ease landfill overflows when you recycle your e-waste responsibly, but it removes harmful toxins (including lead, cadmium, and mercury) that otherwise leech out of discarded electronics and enter the water and soil, ending up in our air, water, and food.

How to find Earth Day freebies

In my city, we have a local Earth Day event each year. During this event, there are loads of kids' activities and lots of freebies (courtesy of local businesses who set up booths), music concerts, delicious food, great information, and more. You can check out your city’s website to find local events.

Other neat freebies to watch for:

  • Anthropologie's Earth Day children's butterfly crafts.
  • Care2 will send a free Earth Day e-card for you (and make a donation on your behalf!).
  • Whole Foods Earth Day Sale (features cleaning products).
  • Caribou Coffee: Free unlimited refills with purchase of a 2015 Reusable Earth Month Tumbler (Exp. 4/30).
  • Pottery Barn Kids: Decorate biodegradable flowers pots and plant a free packet of seeds (Week of April 21st): Space is limited. Call your store to RSVP.
  • Amazon: Download The Four Seasons – An Earth Day Interactive Children’s Storybook for free.
  • Get 10 free trees when you join the Arbor Day Foundation. You can plant them in your own yard or send the trees directly to someone else.
  • Local sales and promotions on energy efficient lighting, electronics, appliances, and home upgrades.
  • Free entry at local zoos and kids' museums.
  • Free drinking water samples and water purification kits.
  • Free seeds, seedlings, trees, and plants.
  • Free reusable bags and water bottles at local grocers.
  • Great online savings at eBay, Amazon, and others.
Earth Day 2015: New Amazing Ways to Help the Planet, Save and Score Freebies