If you're using an aerosol spray can - spray paint, WD40, brake clean etc, if you're not holding the can upright you're going to be just spraying out the propellant, and you'll be left with half a can of un-usable product.
Also with spray paint cans, you may need to clean off the nozzle, you can hold the can upside down and do a short burst of propellant to help.
Shake the can, spray with the can upright. Read the directions. Do the things.
If you run out of said product i.e WD40 in the shop, please replace it or email
to...@area515.org and let us know about it.
Thanks,
-dc