If you're like most people, your biggest investment is your house. Sell your house wisely and you not only save loads of time, but you also pocket thousands--if not tens of thousands--of dollars more than you would otherwise. Making a big mistake in the sale of your house, on the other hand can easily cost you additional weeks--perhaps even months--of work and headache as well as half a year's worth (or more) of your take-home income. If you want...