I keep hearing the financial advice (in books, articles, on the radio etc) that says there is a line. The line is where the money from your investments / savings (or other revenue from a book or a pension plan) generates enough interest (money) that it pays your current or needed salary. When you cross that line, then you're really free ~ free to retire or do what ever you'd like with a full salary and none of the work involved.
Something I heard recently recommended plotting every month on a graph your salary and your investment interest. The goal is to watch them get closer and closer throughout your life. They actually recommended putting the chart in your bathroom above the toilet so you could see it everyday. But really, money is the last thing I want to think about in the bathroom!
So I did the math, just for fun, to see how close (or in our case) far we are from our goal of crossing that line. When I figured it out (what percentage our investments made compared to our net monthly salary (what actually lands in the bank), we're at 1%!

ie (these are not the correct figures for privacy reasons). If we made 3000 net a month, the interest on our investment every month is only $30.
I thought $30 was doing pretty well for 'free money'. But I need to be making $3000 to cross that line! (not the correct figures but you get the idea.)
1%

I have a ways to go! Fortunately I'm 36 and I have some time.
How close are you to crossing the line or do you know any success stories of people who have been able to cross?