In the classic musical Annie there's a great line imitating Miss Hannigan during the "Hard-Knock Life" number that I always think of when I'm mopping the house:"You'll stay up until this floor shines like the top of the Chrysler Building." The image of how that landmark sparkles in the skyline is actually a great motivator for me. But, sadly, the plot, which involves the hard labor of orphans, isn't the nicest thing. But, it turns out that there is a trick to making your floors sparkle just so, and it has nothing to do with child labor or actually mopping.
To find out the trick, read more.
After you've swept your floors with a broom, put a piece of wax paper underneath a mop and run it across your floor. The dust that remains on the floor will stick to the paper, and the wax will give it a brilliant glow. Of course, you should actually mop your floors with soap and water every once in a while, but this is a quick fix.