wait, does the Transmogrifier Deduction for Frobnubilors apply when you claim to be Single-and-Only Highlander? pauses and takes 1 hour to read up on the IRS rules for this and compares with the advice of $random_internet_guy
And after the personal satisfaction of having completed everything myself, I file and a few months later get a letter from the IRS to the effect of "Dear Mr Bonehead, you totally forgot this obvious item, so we're going to refund you a bit more. You're welcome."
Taxes are not hard if you know how all of the rules apply to your special situation. If you don't, like most people, you're in the dark and it becomes a very poor use of time, with lost money at stake—or worse if your intentions are deemed to be fraudulent.