For me, it was retiring (albeit later than normal).
It has given me the time to get into the different things that I have been wanting to write.
Some smaller bits done and soon available to the public. And now I'm into the novel that has been fermenting in my mind the last few years.
And no more awkward clients aggravating me when I was trying to do my job.
Add to that I am getting some hospital help that I have been begging for for the past several years an life has become a lot better.