Not much time. I've almost naturally fallen into a rhythm of wearing the same 4 shirts to work M-Th and Friday is jeans/casual. I alternate between a few pairs of pants. So, less than a minute is spent deciding and looking for my work clothes. Going out, I tend to wear whatever is top-of-stack, weather permitting.
It shows mastery of the language, one could argue. With the tools available today it makes development a lot faster and easier. Functions have tooltips on how to use it, you can scroll through the available functions, libraries imported, and more. While it is unpleasant, it is an exercise that demonstrates your independence from dev tools.
The only time I've used my personal computer for remote work was when it was freelance/independent contractor work. The companies I've worked remote for have all provided a computer for remote work. The main reason is usually information security. The companies need to know that sensitive data is not being stored on my personal computer - I shouldn't have access to it if I'm not working for them.
This goes for homebrewing (beer/wine) too. If you can make oatmeal you can make beer, but if you want to make the same beer exactly the same over and over it is very complex. The fact that Budweiser tastes the same all over the US and is made in 12(?) different locations is a testament to how good the brewers are (even if beer snobs don't like it).
As for coffee, even the foam on top of an espresso is complex.
Congrats! I've been working on a personal project now for a couple months that I originally conceived 2 years ago. It is still difficult to stick with but it is getting easier the more progress I make.
I saved a lump of money for the short-term and took a very long vacation. I have a bit saved for the long-term from before, but now the focus is long-term saving.
The company didn't want to invest in my department but kept setting higher expectations. It caused the team to be overworked and understaffed. You couldn't focus on a project because you were always needed somewhere else. The people in my department were great but their hands were tied. The pay wasn't great and there were some other less important issues, too. I've seen a number of people leave since me, but turnover was always moderate.
I was in a similar situation. I took a break from work and rediscovered the reasons I got into software. Then, I went back to work after a nice long break.
My advice:
Don't just save money, invest it in an S&P 500 index fund.
Time is going to fly by and if, like me, you put money away each month, the interest will be a nice reward to yourself and give you new opportunities when you start to look for them.