It's never been easier to send money or pay for something without cash. Beyond the plastic card that's so common (and commonly abused), there are mobile payment systems and online shopping. Most of these methods, however, are usually employed at the service of commerce and profit. It's high time to use those convenient payment methods for charitable purposes as well. Lyft is doing exactly that with its upcoming "Round Up & Donate" campaign that will let users donate to charity without even lifting a finger, sort of. All they need to do is agree to just a few more cents added to their fare.