Don’t use it. Focus your time elsewhere, such as on using VBO’s.
I've done many single threaded renderers (Using VBOs since forever). Started to get bored, so I thought I'd give multi-threaded rendering a try. I'd love the extra complexity to shake things up :-) .
As L.Spiro said, I think that multithreaded rendering, or atleast creating multiple command queue concurrently can help.
So I gather that queueing GL render commands is the "traditional" way to go?