Balthazar posted a great table and post for starting your campaign’s PCs at level 0.

click here to View level 0 table

Playing in a campaign now where we all had to use this table. The randomness of the roll adds a certain old school feel. It has worked especially well for Balthazar’s Neverwinter cloud game. My character started as a level 0 bandit. It has been a fun system for most of us (with the exception of our army veteran with one hand- but he still plays a bad ass duelist fighter), and besides… The d100 was getting lonely.

Our party exploits can be read here