Donating to a good cause can pay off, but the way you do it matters. Beyond the nice tax perks, studies show that giving to charity can lower blood pressure, improve happiness, and even help you live longer. But there's a formula for getting the most out of your generosity. First, actually care about the cause. A 2007 study found that you’ll feel 10% more satisfied when you donate voluntarily, rather than feeling obligated by, say, a colleague at work. Next, don’t just drop the money and forget about the organization. You’ll feel more connected if you can see how your donation is making a difference. Also, ditch the recurring donation model. It’s easy to sign up for automatic payments, but it can make you feel less involved with the charity. Instead, make active, intentional donations. Lastly, don’t just give money — volunteer your time, too. Research shows that spending two hours a week volunteering can lower stress and give you a deeper sense of purpose. By giving thoughtfully and staying engaged, you’ll be doing good for others, and yourself.