Credit cards are notorious for putting people in debt. (Or is it the people that put themselves in debt?) Either way, Jeremy Bradley -- a bestselling author of a "cheapskate" book -- reveals the many ways you can save money by using credit cards and how you can lower the costs of using apps. JB has creative workarounds for some transactions and how doing a little bit of planning can see big savings. Sure, all the ways are legal but some might be a little, well, immoral? Nevertheless, saving is saving!