keeping it clean

It's important to keep the cap of your spraycan clean. The manufacturers suggest that you turn your can upside down and spray untill only gas (and no paint) comes out of the nozzle. My opinion however, is that since I'm gonna spray loads of small paint jobs, this technique might empty the can of gas before I'm finished. Two coats of paint on one leg means I'll have to clean the nozzle 8 times. So my trick is to take of the cap and simply blow through it untill only bad breath comes out the other end.