Can I Clean Hardwood Floors with Vinegar?

Q: I read that a good wood floor cleaner is vinegar with water; is that OK? 

Vinegar and water used to be a typical recommendation for cleaning wood floors with a urethane type of finish. These days, however, most manufacturers recommend cleaners that are specifically formulated for wood floor finishes. In fact, vinegar is acidic, and using too much could damage the finish. People who insist on still using vinegar should use plain vinegar—not apple cider vinegar, red wine vinegar or any other type, which could leave a sticky residue on the floor.