they have this great gadget a handle for spray paint cans... looksl ike a little trigger.. u can get cheapy ones for like a buck at walmart.... they are good for several uses... it snaps right on the areosol can.. and no paint on ur hands.. or sore fingers!
The trick to a good spray can paint job is thin coats.. several thins coats will look much nicer than one heavy coat.
I am the master of spray paint.. ( DH wont even let me go down the paint aisle... it's ok .. I just go when he isn't with me.. hehehe)
I have painted cars, rooms, furniture, lawn stuff, etc