It may sound like a problem for "Lifestyles of the Rich and Famous," but if you want to do one thing to help our oceans, consider passing on eating caviar. Caviar varieties like beluga and wild-caught sturgeon are species that are often overfished. Generally, caviar is harvested from fish that can take many years to mature, and when they are matured, their eggs are collected, which makes repopulation difficult. If you must have caviar, look for American domestic kinds that come from a more sustainable form of fishing and -- bonus -- are often cheaper.

Did you know that close to 40 percent of holiday gifts are returned? Did you also know that 18 percent of gifts are donated to charity, 15 percent are re-gifted and a whopping 11 percent of gifts are tossed in the trash? That means only about 15 percent of gifts received this holiday season are actually kept and enjoyed. To help cut the waste, consider scrapping giving gifts that are too personal, like clothes, toys, electronics, jewelry, cosmetics and kitchen and bath items. Instead, think about experiential items like excursions to restaurants, a delicious bottle of organic wine or even a donation in the recipient's name to a worthwhile charity. We can cut the waste and give gifts that are a joy to give and a joy to receive.

Did you know tea is the No. 2 most popular beverage in the world, right after water? Since tea is gaining popularity for its taste and health benefits, it makes sense to wonder if the tea you're brewing and sipping is environmentally friendly and grown with the farmers in mind. When buying tea, look for varietals that are certified by independent nonprofit organizations like the Rainforest Alliance or Fair Trade USA, which have standards to make sure the growing and labor practices are sustainable. And major tea companies are taking steps, too, creating Tea 2030, a project of Forum for the Future that works to create global sustainability. Brands like Tazo Tea, The Republic of Tea and Lipton are members of Tea 2030.