I find knives are easily the most effective way to smoke weed and/or hash.

You only need small amounts and you get really high. Only real downsides are waiting for the knives to heat up, the fact that it murders your lungs and of course the realization that if you're smoking like this than you're definitely a hopeless pothead.

But that last one only applies if you actually feel guilty about smoking a lot of pot which I'm sure none of you are.