The question for me is always - "Do I have enough information about the historic object type to start working on my reprodutction?" It is very hard for me to step away from the research, and start making. There are ALWAYS unanswered questions.
I am liking Pinterest for visually organizing.
http://www.pinterest.com/eleanordeyeson/ Eleanor
(This post brought to you by "you really need to get off the web and start creating.")