piss testest are easy to pass just drink about a gallon of water starting 3 hours befor the test more the better then take 2 vitamin b complex pills (not time realese) you should be peeing constently at this point and the b pills make your pee yellow
most jobs dont use hair tests but the shampoo they sell at local head shops will work great
if you want more info on drug tests and such you should contact your local norml chapter
www.norml.org