clear eyes help, i've found if you eat/ drink alot before you go home that can do miracles for your ability to apear sober. Go to 7-11 and look for smokers breath gum. That will get the smell completely off. Also, aqua drop mints work better than regular mints.

as for flushing your system, just eat nutritious foods, don't smoke any more, always drink plenty of water and excercise regularly, and you shouldn't have a problem after about 2 weeks of being clean.

about a stash, thats for you to discover. i use the battery case of my boom box, and i also pull some books on my bookshelf out, put my stuff up against the back of the book case, and then put the books pack. those work for me.

and by the way, parents may suck, but being busted by the cops sux alot worse, especially a week before you are no longer a minor, because you get the worst of both worlds plus your parents being pissed