In 2013 and 2015, some members of this community took part in a "bounty challenge" to encourage excellent content during the Advent season. I think the idea is great, and the first week of 2016's advent is ending today, so I'd like to see if there's interest in doing this again.
As last year, feel free to choose your own criteria and schedule for placing bounties – some prefer to place one or two bounties on questions that need new answers, while others like to reward existing excellent answers once a week, for example. Simply post an answer here with your criteria, and update it as you add bounties to questions.