Would like to add "habit of drinking water" to this list. ANY beverage whether its coffee, soda, tea - is easily 4 to 6 dollars and is an entirely made up requirement.
Even if you buy something unnecessarily expensive, like fancy matcha tea powder, you're looking at less than 50p.
https://www.theguardian.com/science/brain-flapping/2014/oct/...
Soda is best abandoned, however.
And it is a good practice indeed. I think deep down my comment history here one can find that I found it strange that someone would pay a lot of money on an annual basis for coffee out of the home.
That said I also think that it is not bad to be able to spend money like that. Not about the money itself, but the mindset required to spend. It must require a very pleasant way of life to not want to save all money, like in case of emergencies or saving up so you or your kids can go to college.
Balance, basically.
If you want to start with a less expensive roaster you can find recommendations on reddit at /r/roasting.
Basically, you combine water, Kefir, and sugar, then you wait a few days. Then, you drink. Or if you want to add flavoring (which I highly recommend), you do a second fermentation process: add in the flavoring (e.g. dried strawberries or something), bottle it for a 1-3 more more days, then drink or refrigerate.
[0] https://www.drperlmutter.com/about/brain-maker-by-david-perl... [1] https://www.youtube.com/watch?v=Y_d7wQ-lkvI
[1] There seem to be many such kinds, across various countries.
Quark, skyr, doogh, kumis, buttermilk, dahi, chaas, filmjölk, blaand, ayran are some of the varieties.
Here's a list: