Do you think a third party or write-in vote is a vote wasted?

I've been hearing lots of discussion about this and I haven't decided how I feel. I'm curious what this community thinks!

Keep comments polite and respectful, folks, and bear in mind that I'm asking about the legitimacy and/or usefulness of third party and write-in votes in our current political system. If you want to discuss the merits and drawbacks of the various candidates, that would be better as its own post. :)