I can't think of anything momentous, but there was one small thing. On 9/30/18, I set a goal for my self to do at least 10,000 steps a day, every day, with NO exceptions. I met that goal and in fact, still haven't missed a single day. 9/29/18 was the last day I didn't walk at least 10,000 steps.
I'm almost done stripping the cupboard, so although that isn't a completed accomplishment, it did feel significant to move well into the action stage from the just talking-about-it stage.