Eco-friendly products, recycled materials and energy-efficient appliances are savvy investments in the future. And since today is Earth Day, I’ve been brainstorming for frugal and eco-friendly tips. It’s possible to go green, without overspending.

Here are a few ideas:

• Instant returns: After purchasing an organic skin care product, I promptly returned the paper shopping bag and the box to the sales clerk, asking them to return the packaging to the manufacturer. This technique is called “pre-cycling,” according to Trey Granger, of Earth911.com.

• Cut the water bill: We can save money and the environment by using less water. In addition to taking shorter showers, consider tossing used cooking water into the garden or plant containers. This multitasking water may also have nutrients that will help your plants, according to Earth911.com.

• Apply vinegar: I’ve found frugal, effective and safe uses for vinegar. For instance, diluted organic apple cider vinegar makes a great hair conditioner. I’ve used a mix of 30 percent vinegar and 70 percent water with great results. White vinegar doubles as a nontoxic cleaner that works well on windows, tiles and kitchen surfaces.

• Shopping detour: Mindless shopping can fill our carts with future landfill cast-offs. “If you don’t buy waste, you can’t make waste,” said Raquel Fagan, of Earth911.com.