What to do After Paying Off a lot of Debt

I’m writing an article for “U.S. News & World Report” about mistakes that people often or sometimes make after they get out of debt. If you’re someone who works with people in debt, and you’ve seen some horror stories and/or have advice on what consumers should do and not do after clearing a lot or most of your debt, or if you’re a consumer with a tale of your own, and you have advice for others, I’d like to hear from you.