I've read Tim Ferris's book and I think it's pretty good. The only thing is that they advocate hiring people which is fine IF you have the cashflow for it.

Now some things I have been doing to create my system is record a lot of data. For example I sell shirts. I timed myself for an hour to see how long it would take me to set up, print, bag the shirts, and clean up. It took me 1 hour to print 20 shirts along with bagging them and cleaning up. While I was doing this I was also writing down my process step by step so that when the day comes to where I'm willing to hire work, I will have a written SOP, standard operating procedure, to pass off. I was doing a lot of things within that 1 hour so it's easy to improve to 30 shirts in an hour.

So I have created 20 shirts in an hour. I'm looking to make minimum $7.5 profit per shirt. If I'm able to sell all of those shirts in a week then that $150 I have made from 1 hour of physical labor. These are the types of systems I am create. It meets all the criteria of S.M.A.R.T. Goals. It's specific, measurable, attainable, relevant, and timely.