What else can be done Besides drinking water to pass a drug test?

to pass a drug test for THC atleast (i don't know about any other drugs, because weed is the only thing i do), but you can drink water, or drinking white distilled vinegar, even though it tastes nasty, but that can destroy your lining on your intestines and stuff like that. also taking Niacin pills, the kind that turn your skin all red, taking those with drinking alot of water to prevent dehydration, will clean you out in a day or so. also drinking alot of cranberry juice will do it, or colored pop, because pop has niacin in it, and itll work just like water, by flushing your system. other than that, just drink alot of water, and pee often, and you might pass. THC is stored in the fatty tissues of your body, so the more you excrete wastes, should help, so try taking laxetives, just a suggestion i don't know if that one will actually help, or not..