I paid off the remainder of the balance on a zero-interest consumer loan for a Dell laptop I bought last year for work.
Technically, it was not a fully zero-interest consumer loan: it would have started accruing interest next year had I continued paying only the minimum payments per month. At that rate, I would have still had a significant balance remaining at the end of the "promotional" zero-interest period, and a bunch of deferred interest would have accrued at that point. In fact, according to my monthly statements, paying only the minimum payments for the lifetime of this loan would have meant not paying it off for 19 years! Yikes! So, I went ahead paid it off in full today to get it out of the way for good.
My wife paid back a moral debt to a friend that she incurred all the way back in college. Her debt was also computer-related: she spilled water on and ruined her friend's laptop.
We socked the rest (a few hundred dollars) away into savings.
Perhaps not the most riveting story, but sound financial decisions are often boring.
All of this does put us a couple steps closer to our goal of buying a new car, however, which we plan to do when we have a bit more saved up.