11. Become a vegetarian (or just eat less meat)
Meat is one of the most expensive items at the grocery store. You can eliminate this expense if you are willing to become a vegetarian or simply reduce your meat intake and increase your consumption of vegetables. To see if this can work for you, try skipping meat a few days each week. In addition to saving money, you’ll be doing the planet a favor. According to a National Geographic report, in the United States the raising of livestock is responsible for 55 percent of land erosion, 37 percent of use of pesticides and 50 percent of antibiotics consumption.