I agree, I wouldn't celebrate the darkest day of the year. Good grief no, but what I do make a small celebration of is the fact spring is on the way and I will soon not need to wait until nearly 9am for the sun to fully make an appearance! Nor will I soon have to finish any cycle rides by half 3 before the darkness gets too much, I hate cycling in the dark!
I was at a place called Arthur's Stone on the Summer Solstice, and had a family of drum-bangers etc up there which really rather ruined the experience of resting at a place with excellent views of Herefordshire. Some rather nasty gradients in all directions to get to it, so after the big climb up to the area I was keen to have a good bit of peace and quiet while I recovered. Certainly didn't get that!
Something nice for this list though:
Doing a course on a subject you're interested in and finding related topics in said course that are more interesting than you expected them to be
And, while I waited for my phone to charge this morning, I had this pleasure:
The sheer satisfaction from a good tidy-up/de-clutter/epic cleaning spree!