Brush your teeth, gums, roof and tongue at least 3 times, gargle and have an altoid just before the test. I've done it and passed every time
no
no
No.
Yes.
If you smoked frequently until that time, it should certainly be undetectable in about 30 days.
No.
You don't.
If you smoked marijuana, very likely not, but you never know. Other drugs i am not sure about
I smoked meth with Whitney yesterday.
no
Yes, you can .. a saliva test is designed for a maximum window of 3-4 days
3 days