For years, Oprah's been bringing her lunch to work every day. "Stedman's always making fun of me every morning," she says. "I go, 'Look, I'm saving $5.'"
Now there's an even better way to save money on packed lunches that will help the environment too. By switching from using disposable items in your lunches to reusable ones, you could save as much as $320. You'll reduce your waste too. This is important, green expert Simran Sethi says, because the Environmental Protection Agency says we currently use 300 billion plastic bags a year. "It's an outrageous number," she says.