Smoking with a hat on gets you higher : As ridiculous as it sounds I've met people who swear by this!!
Holding smoke in for longer gets you higher : no idea if this is true or not...
"You've gotta cough to get off" - when you cough (normally after a big bong hit) it gets you higer because the smoke gets to different parts of your lungs?
Lucky strike cigarettes are so called because many years ago 1 in 1000 (I've also heard 1 in a million) cigarettes contained weed.
Orange juice is the quickest way to sober up after smoking too much.
Can't remember any more off the top of my head but that should do for now
