I like being generous, but it’s hard to balance generosity and frugality. Amazon Smile makes it easier:
When you put something in your Amazon cart (something you need, not want, obvs), get a new tab, and open smile.Amazon.com. Navigate to your cart, and check out there. You can set it up so that your money goes to a specific charity, and they’ll donate a small percentage to that charity over time. I’ve donated $25.11 to a charity from my home town, which isn’t a ton, but it’s not nothing, and it cost me nothing. Now I get to be cheap AND generous (sort of)!