i like the yotties/poppers (no bowl at end of bongtube, and you pack it and pull the cherry thru with a nice pop and rush of smoke
i think that a gravity bong and a waterfall are the same thing basically (i use the terms interchangeably) i think a waterfall u make a small hole in the bottom of the container and let it drain while a grav bong u bottom out the container and put it in a bucket and pull the bottle out. essentially the same thing. but i find the grav bong method much harder to do correctly
You go thru your stash faster if you smoke joints and blunts. I smoke bongs and pipes most of the time; joints and blunts sometimes, if i miss it or i got a friend over and i jus wanna pass a j between him/her n me, or if I jus wanna listen to bob marley the whole day (Only joints go with bob marley music..its the spirit and bongs dont cut it in this case) and i recomended the pop can for a last resort thing. I havent used a can in years, and I dont plan to.