You've gotten some excellent advice here so far but I wanted to add a few bits that I've picked up: 1.) You're going to do sales, invoicing, collections, bookk

You've gotten some excellent advice here so far but I wanted to add a few bits that I've picked up: 1.) You're going to do sales, invoicing, collections, bookkeeping and regulatory shit. At various points, these five jobs will make you want to go back to your FTE status. 2.) You will eventually become your own pointy headed boss (at times). 3.) The difference between net income, profit and cashflow will always surprise you in the wrong direction. Try not to spend theoretical dollars...