I've created a new category here called 'Workflow'. In it I am placing howtos for the various project stages.

This category is so special that it has its own division in the sidebar to the left. (If it's not a link, it's not done yet.) Refer to it often.

What to do when the project is done.

First make sure it's really done. 'Almost', 'practically', 'pretty much', 'just about', and 'I think it's' done are not the same thing.