Don't get into a battle with the tax collector until you know your appeal rights. The tax code is full of opportunities to cut your tax bill, but many often miss out on these valuable deductions. Claiming New York as a dependent? Depreciating an exotic dancer's "inflated" assets? CPAs tell all. Some of the complex U.S. tax code even surprises the experts. Here are five laws that trip up a lot of taxpayers. Here's a look at 10 important tax laws, how they'll affect your 2007 return and your 2008 tax plans.