I can highly recommend this stuff:

Very little dust, clumps well, flushable (if that is how you do).
It does tend to track a little, the particles are light and stick to the cats feet. So you have to sweep a bit. But it doesn't have that nasty silica stink that you get with clay litters. And if you regularly maintain the box, you will get the longevity out of the litter that will offset the cost (it isn't cheap).
In general though, scoop as soon as the cat dumps out. This will make your situation much more comfortable, more so than any gadget or system.