We've been running for over 6 years now, and I thought we should take the opportunity to look back at the best answers.
Please post an answer nominating your favourite / the best answer of 2011 (don't worry, we'll move onto more recent years soon).
You can nominate more than one answer, each in a separate post.
You can not nominate your own answers.
You must link to the answer.
This will run until we have 10 answers with at least one upvote, at which point the top three answers upvoted will receive bounties from myself (and anyone else who deems it worthwhile - hopefully you'll be generous with the bounties since you voted for them).