Travel, a lot.
I'm a middle-to-low-class on a 3rd world country, that's ridden with political corruption and minimum wage of 3k USD a year. I can't even afford to travel to another state.
- Exercise, quite a lot.
I think "a lot" is too much, with a good diet and jogging you can be pretty healthy.
- Learn at least another langage.
My english is self-taught, the most useful thing I do with it is playing video-games(t was because of it that I learned it anyways), having another language here in Brazil means jack shit, even if it's english.
- Stay creative, remain a young mind.
I'm a 29 years old manchild and probably will forever be, I'm only creative on simulations games if that counts. :P
- Respect yourself and train to rely on yourself.
This's fine as long as you don't become a narcissist loner piece of shit.
- Don't buy a lot, buy in a useful way.
Rich Dad Poor Dad