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Donate some time to a good cause, Peter says. "Dedicate the time that you used to spend shopping to working for a charity or cause that you support," he says. "A little of your time can make a huge difference in people's lives and make you feel a whole lot better in the process. 'More with less' isn't just about hard cash—it's also about stocking up on good deeds and helping others less fortunate than yourself."