I just found a fast and free way to pay off your loans and never worry about money if you have an MD! Don't have kids. According to this article, raising one kid to the age of 18 in a high income family costs ~400k. Wow! And that is just one. We all know that cutting your kid off at 18 doesn't happen, so its really a lot more than that and gets crazy high if you consider paying for college.
Im not saying people who have kids are stupid or anything, and I know not having kids is not for everyone. All I wanted to say is that if anyone has ever thought about not having kids or is on the fence they should dig into how much money you would save. For me there are a lot of other reasons not to (for another thread), but I thought I'd mention this aspect in light of the conversation about income, money, and what it takes to be "rich".
Sometimes when I look at my loans and panic, it is a really comforting thought to remember that I've basically erased that debt and then some by choosing to not having kids. It also makes me feel more free to choose a low paying specialty, a high COL area, or to work much less.
http://blogs.wsj.com/economics/2016/06/22/how-much-does-it-cost-to-raise-a-child/