I will second the Bogleheads book, which you is online for free by the author. Really simplified investing into a 2 or 3 fund hands off portfolio. I've had great success with it and I never have to worry about financial news.
Ontario Rat pocketknife replaced my Benchmade I sadly lost. 90% as good for way less money. It hurts losing an expensive EDC item.
Add on bidet. I didn't know why baby wipes are so popular when this is cheaper and won't mess up plumbing.
Aeropress and pour over cone with Trade coffee subscription. With my medication I didn't drink much liquor anymore. Coffee tasting has all the fun of trying single origins without interfering with my meds and is probably cheaper and healthier.
Musical instruments. My guitars were fairly cheap and require little maintenance costs. I got my electric piano for free. Hundreds of hours of creativity and expression I can use for the rest of my life that is essentially free at this point. I'm not even very good at music, but it's a fun creative outlet.
Good pens. Don't have to be expensive. Pilot V5 and Uni Jetstream are my cheap go to, but they write so much nicer than super cheap ones. Once you appreciate those, check out JetPens and enjoy yourself.