My current shop is at a dealership, so things are slightly different, as speed is required more then accuracy. We use 1/2 gal hand pump sprayers for the tire dressing....very sloppy, we use hand pump 2 gal garden sprayers for engine degreaser, and for a presoak we use, then we have susre shot sprayers for the fabric prottection.
In my own shop there was nothing more then bottles with trigger sprayers, accuracy was all important, and time was not as big a factor.