I wish more people would do write-ins. I also wish we didn't have a primary election. You should only ever vote for the #1 absolute bestest candidate you can find...not just the guy your political party is pooling its resources behind.
Let's say candidate x was running against candidates y and z in the primary. You voted for candidate z, but candidate x won the primary. Now you're going to vote for candidate x in the general election, when you believe that candidate z is a better candidate? You can still do a write-in - why compromise your own integrity by voting for somebody you don't fully support (after all, you didn't full support him or her few months ago)?
Yet millions of voters do this in every election. Everyone seems to think you can only vote for the two major candidates, and we get this crap like "I'm voting for the lesser of two evils." (No offense, TheMoonMan, but that's what it is.) You shouldn't vote for anybody you don't fully support. And you shouldn't support anybody just because your political party does. You don't vote as a party; you vote as an individual. All this "vote strategizing," for lack of a better term, is a corruption of the concept of a free vote. Voters try to place their vote wherever it will matter the most, i.e. only for one of the two major candidates. They think it's "throwing your vote away" if you vote for anybody else. But by that same logic, you might as well vote for the opposition if the polls are showing him in a strong lead, since it's just "throwing your vote away" to vote for somebody who doesn't win.
Unfortunately, that's the problem with party politics. As long as we have such a strong bipartisan system, our elections will come down to this trash. Write-ins, people! You can vote for whomever you want! If you don't like the names on the ballot, you had damn well better be adding some new ones.