In my new book, The Overtaxed Investor: Slash Your Tax Bill & Be a Tax Alpha Dog, I put the 73,954 pages of the tax code into a sausage grinder and crank out the top ten tax mistakes investors typically make. Being tax smart earns you free money – there is no extra cost or risk associated with banking it. Risk-free returns are the best deal you can get. Yet research shows investors consistently shoot themselves in the foot.