Annual life review
I recently had the scenario where I had to use up a few days holiday before they would expire. I decided to hire and cottage and go walking. Unfortunately due to a stomach bug this didn't go quite as planned however the other aim was to conduct a life review and assess what I wanted to achieve over the coming year.
I scanned the web and found this article, How to Conduct an Annual Life Review That Will Catapult You into the New Year. There is also an accompanying template you can use to work through it.
It starts by reviewing the last year before moving forward. You assess where you currently are on a number of areas of life and then work out some of your goals.
It was a useful exercise that took me a couple of hours. I am not sure I identified anything ground breaking that I didn't already know however it did get me thinking - especially around the health/fitness side.