From what I've heard, the haircuts won't make a difference - the reason it stays in your hair for 3 months is because it stays in your fat cells for 3 months, and your hair follicles are surrounded by fat cells - so when your hair grows through, it has the residue, however minute. I've heard of people tring to beat it with buzz cuts or full bald, they just take an arm hair or eyebrow (because it's easier to pluck than a hair with only a small fraction of an inch showing or none at all). Your best bet is to abstain, take the test, and see what happens; if you fail, you can usually appeal, by which time hopefully you'll be clean.
I would think some cleansing/flushing couldn't hurt either, to hasten the process of elimination.
Or get a job in advertising, where even the suits usually smoke.
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