As I inventoried my personal library and classified it using the Universal Decimal System, I found out about lots of fields of knowledge I was only dimly aware of or didn't even know existed1, and one of those that piqued my curiosity was home economics, domestic science and housekeeping (field 64). I was kinda bluffed, actually; I always thought of home economics as that thing that shows up in American high school sitcoms, that elective "for girls" where people get to cook stuff on campus. Now I find that it fully occupies one of The Tens of the UDC! I finally realized it; this is Serious Business!
I thought of the permanently shoddy state of my bank account, of all the money I had spent in books (no less than 215 physical books, and then there's Kindle!), fancy gadgets (were those Marshall headphones really necessary? What about that sandwich-maker?), fancy food (even though I always seem to end up "cooking" the same boring, unbalanced crap), unnecessary or excessive heating and air conditioning, and so on and so forth.
I've come to realize how much I had underestimated this field, the duty towards oneself of taking care of one's house, and the advantages of so doing. I want to catch up in terms of planning my budget and my cleaning and my cooking and my buying furniture and appliances and so on and so for. I suppose I could figure it out by myself, but why reinvent the wheel?
So I thought to myself: asking your mates at LW has had awesome results when it came to getting your library in order, why don't you ask them about Home Economics? They probably actually went to those courses in High School, or have otherwise taken an interest just to optimize their homes! I mean, their literal livelihoods and well-beings are at stake, so why wouldn't they2?
So, yeah, if you guys know which reference books to start with, or have any practical recommendations in terms of resources or bibliography, and the handling thereof, I'd love to hear it. Who knows, maybe a good top level post may come of it?
1This triggered my imagination on a completely unrelated topic: a gamified education system in the style of an RPG skill tree.
2My Inner Critic obligingly suggested "Arkasia and, given the demographic, a compounded disdain for manual labor, pedestrian and materialistic concerns, and girly stuff. Why else didn't you?" I told it to step aside and go have a swim in the North Atlantic.
I agree with Steven Marshall and with your father. (I am a US citizen but living elsewhere.) Living on about half your income, on fairly plausible assumptions about the present and future performance of the economy, gives you good prospects of being able to retire nice and early. At which point, of course, you don't have to retire -- you may enjoy your work too much, or feel obliged to give a lot of money to charities, or have the urge to get rich rather than merely comfortable -- but knowing that your employer no longer has the ability to dump you into poverty is a big deal. Even before that point, you have much more ability to (e.g.) choose a job you'll enjoy, take longer about finding a new job after an old one ends, etc.
I have the impression (based on insufficient evidence, and I'll listen gladly if others tell me I'm wrong) that this sort of advice is particularly needed in the US, where there is a strong culture of credit-based conspicuous consumption.
This is the crux of the matter: being free to do what you want with your life, and feeling safe and secure at the office. This will allow you such luxuries as freely speaking your mind, refusing unethical orders, privileging actual professional accomplishment over the appearance thereof, not feeling threatened by the success of your peers and being able to help and collaborate with them freely, and so on.