Spray Painting Question

I do a lot of spray painting in my garage and every time I do it, I notice that after im done , a lot of excess paint lands on the floor and dries up but does not attach to the floor, it is like a paint dust , maybe its the paint pigment or something but anyways after i spray theres a lot of this paint dust that lands all over the place, under shelves and everywhere, and its a big mess, I would have to move everything out of my entire garage to clean it up. I will do that sometime but if i paint again , is there any way to stop this mess from happening? I know people are going to say, oh just dont paint at home. but thats not what Im looking for, so is there any answers to this problem? Thanks