One more week until Tax Day. Have you filed yours yet? I haven't (probably should get on that, actually), any time I read in USA Today that roughly 47% of Americans won't even have to worry about paying federal income taxes, I start to wonder if I should even bother. Oh sure, there's the threat of prison time for tax evasion, but really, what's the point if half the damn country isn't going invest up and log off scot-free? 4) Happen to be left employing taxable income. Find out what perce...