The two important lessons everyone should take to heart from this: 1. Whenever you sign up for a free trial that requires a credit card, set yourself an out-of

The two important lessons everyone should take to heart from this: 1. Whenever you sign up for a free trial that requires a credit card, set yourself an out-of-band reminder for the deadline to cancel before being charged. 2. Every month, read through all of your monthly statements and make sure you recognize all of the charges on them.