Any method can be wasteful if you are not carefull. I use a home-made water pipe. I put only a little in the bowl at a time. Then I lite it with a match carefully to only get a little burning. Then I toke enough and snuff out the bowl with my finger, and very little stuff goes "up in smoke" wasted. You can also stop the burning with a damp finger tip.

Sometime I roll tiny joints that are good for only a few hits and I snuff that out after each toke.

If you are lucky as I am, cause I got some potent one-hit-quit-shit, then it doesn't matter HOW you smoke it, you just smoke a tiny bit and it is ENOUGH. This stuff I'm smoking I grew myself from SuperSkunk seeds I bought from Mark Emery in 1990. The seeds stayed alive in my fridge for 7 years until I grew some plants last spring time. :smokin: