This thread is very timely, as I myself have somewhere between 300-700 days to my own retirement.
For years, what kept me for figuring out my financial situation was not wanting to see that "yes, you can retire, when you're 93." I eventually realized that my thoughts didn't affect the answer, looked into it, and was pleasantly surprised, sort of. The "sort of" part is the unknowns: how long we will live, and when our medical costs will skyrocket, likely at the same time that our mobility drops off. In any event, it looks like unless I do something silly, I'm genetically destined to live a long life, but end up delusional... a very mixed blessing.
Over the years I've been collecting tools to keep myself busy in the garage, plus there's a telescope, a garden, koi pond, and its associated filtration. Anyway, money-wise it's getting close to "good enough", mostly because there's no debt, but also because we aren't planning to be heavy spenders in retirement, with no world trips planned. That said, I do admit to being drawn to maybe taking an epic drive in a smallish motor home to Alaska (from California).
Right now I'm looking into CAD software to buy, with the thinking that it may be the last one I buy, meaning that I plan to learn it really well and stick with it. It also means that, probably having it for years after retirement, I don't want to buy into something subscription-based. I don't mind paying $$$ in a lump sum, but having it end up costing me $$$$$ over the years is no good. The idea is to use it to design a laser cutter (for wood), design various things to cut with it once finished, and to also create files for a 3D printer, which is also on the wish list.
Somewhat related, our company allowed us to work at home all of 2020 and into 2021, It gives a small glimpse into what retirement might be like, underscoring how important it is to stay busy. Last year I took off Thanksgiving through New Years, and yeah, have to always have a project underway. Somewhere along the same lines, we're facing remodeling the house, and that seems like a pretty good (and huge) project to kick off retirement with. The idea would be to either do it myself, or more likely, work with a contractor who allows me to be a "laborer" in exchange for a price reduction. I know how to do everything, but some of it's simply too time intensive or often, needing a second pair of hands.
Lastly, our garage is a standard two-car size, with my wife's car on one side, and my small play car on the other, AND my machine tools. I've built two cars from scratch (see sig), but lately, I seem to be changing, with less motivation to take it out for a drive. Couple that with not having space to build said laser cutter, and I'm facing the difficult decision of if and when to sell it, gaining back both space and $$$$$. Guess we'll see!