We had hardwood floors in our previous home, throughout the entire house with the exception of the bathrooms and kitchen. I mainly used a swiffer, and when I did mop we used Murphy's oil soap (rarely since as a previous poster mentioned, it can build up and actually make your finish look cloudy). I preferred to dry them with towels purchased solely for that purpose instead of letting them air dry. Although they probably would have been fine without doing that.
FYI - We had sanded and re-finished them when we purchased the house, and only needed to sand and put a new coat of finish on them 10 years later - even with the wear and tear of 5 people. The key is, have your family take off shoes at the door and wear either slippers or their socks around the house. The dirt you track in on your shoes can scratch and scuff the finish. And, if anyone comes to visit and is wearing high heels, have them remove them as well (some heels will dent the finish, making your shiny floors look beat up).