A couple of bags of water softener salt (the fine ground stuff) applied during a rain shower (not a soaker) with a lawn spreader can help immensly. Road commission uses the same deal. Best overall solution for me was to top it with crushed asphalt (locally available). It was $300 for 10 yards as I recall. The guy set his tailgate to about 2" opening and drove about 15 mph. It resulted in about 1.5 inches of covering. A perfect, quiet, dustfree, stays put material. And its dark colored. For some reason the color sets it off from other's driveways. It packs down real nice, too. Some folks use a plate compactor to really compact it.