Generally speaking, investing in yourself is the best thing you can do. Anything that improves your own talents; nobody can tax it or take it away from you. They can run up huge deficits and the dollar can become worth far less. You can have all kinds of things happen. But if you’ve got talent yourself, and you’ve maximized your talent, you’ve got a tremendous asset that can return ten-fold.
I keep a separate personal development account. Each month I deposit a set amount of funds that I use towards books, online courses and betterment.