That's the thing. No exceptions! 
You may think "oh, this picture pretty much shows what I've made, this should do", but you don't realize that there are maybe 5 or 10 details (in your perception) that turn out to be crucial.
Making a schematic isn't very difficult; try with a pencil and paper, and snap a smartphone pic to post here when you're done. Yes, there are many conventions etc., but even a poor schematic that matches your actual circuit is better than a very nice schematic that's not exactly your situation.