Armour All makes a great product that really cuts down on brake dust. For me after just 60 to 100 miles of driving my wheels are pretty much covered. After applying Armour All to my alloys... I would have to drive about 600 miles to get to the same dust level/coating. Just be careful when applying it... try not to spray it on your brake rotors... You can notice diminished braking for the first few miles after applying this stuff. But it works awesome in cutting down brake dust.
.