Toilet paper

1. Stock up with a years worth of toilet paper.

2. Hole in diaper for a vacuum cleaner to fit in to suck out all the poo.

3. Mirror on the wall behind students so the teacher can see if they are on Facebook.

4. 420 Munchie food cart. ( only open on 420)

5. Fart in your car before someone else gets in. Don't role down the windows.