Salmon can be a heart-healthy addition to your diet, but not all fillets are created equal. Some varieties can contain higher levels of chemicals, heavy metals and other contaminants. When shopping, look for "wild-caught Alaskan" salmon rather than "farm-raised." Scientists have found that wild salmon generally contains lower levels of contaminants and higher amounts of heart-healthy omega-3 fatty acids compared to farmed salmon. It also tends to be lower in total fat, meaning more omega-3s per bite. Add in Alaska's strict fishing regulations, and wild-caught salmon stands out as a more sustainable choice as well.

When it comes to storing citrus, there's one simple step that can extend the lifespan of the fruit from about one week to nearly four: Keep it in the refrigerator. Citrus fruits like lemons, oranges and grapefruit thrive in a cool environment with good airflow, making the crisper drawer an ideal place to store them. While a bowl of fruit on the kitchen counter may look appealing, the warmer temperatures and limited airflow can cause citrus to deteriorate in as little as seven days.

Sure, it isn't a common choice for most of us, but flying on a private plane is far more wasteful than choosing a commercial flight. In fact, a single four-hour private jet flight can generate more CO2 emissions than one commercial airline passenger produces in an entire year. Even on commercial flights, the type of seat you choose matters: first-class travel can be up to five times more carbon-intensive than economy due to the larger amount of space per passenger. Economy seating allows more people to fly per square foot, resulting in lower CO2 emissions per person.