Verified answer

Don't do drugs.

If you can plan ahead, piss in a bottle when your clean ahead of time, or if you didnt plan, have a friend give you some piss. Get a travel size shampoo bottle and fill it with the urine. Before the test, stick a hand warmer onto the small bottle of shampoo and hide it in your pocket, or use an ace bandage and tie it to the inside of your leg. Pour the urine into the sample cup and pass. This is assuming it is a shitty drug test (school at home) and that the sample will not be lab tested as they will know the piss is old, however, if it is your friends piss and it is relativlely fresh, this method will work on lab tested samples, provided an administrator does not watch you the whole time.

It's easy...don't use anything that will yield a positive result on a drug test.

Cranberry juice makes you pee a bunch, that's probably your best bet for a urine test, other than that its just a matter of time

Dont do drugs!! or...do detox drinks

Study hard.