Beware if you’re offered a “free gift” or “free trial” to sign up for some service that will require regular payments moving forward. Even if they stress how easy it is to cancel. Many times, the “free” item will come with shipping costs or there will be something hidden in those lengthy “terms & conditions” you have to click to agree to when signing-up that allow them to penalize you or back-charge you for the free gift,” should you cancel before the promotional period ends.
Similarly, many of those "zero-interest” deals actually start calculating interest from the day you make the purchase. Should you fail to completely pay off the debt before the end of the promotional period, you will pay interest on the entire purchase amount from the day you made the purchase, no matter how much of the original amount you’ve paid off.
There’s a reason why the cliché, “There is no such thing as free lunch,” was created.
