Those along with making paper, clothes, ropes, oils, healing (Native Americans used them in their versions of saunas [sp?]), skin care, and so on. Even a study came out this year that smoking 2-3 joints a week increases lung capacity. Basically there's no legit reason why it should be illegal. The only reason why it is illegal is because some guy that invested in some tree cutting company would have went bankrupt if Mary Jane became legal. Weed alone can save our economy (and the world for that matter).