Banks have come to rely on fees for a big part of their overall income. But in their efforts to boost profits, big banks have also come under fire for their fee-raising practices.

In the following video, Fool contributor Dan Caplinger takes a look at a recent report from the Consumer Financial Protection Bureau detailing some of the most troubling practices governing checking-account overdraft fees. In particular, Dan discusses one controversial practice that some banks have finally started to change in their customers' favor. Dan concludes with guidance on how you can find out what your bank does with its fee practices and how you can cut the financial hit you take on your accounts.