Ditto above and also do not toss or get rid of anything until you've got the replacement installed. Photos, notes and drawings will be helpful on down the road. A photo journal such as Webshots/Photobucket helps show others your work and can be used for reference or to answer questions. We all like pictures! I've been on my 4t6 almost 5 years and my mind isn't what it used to be so every little bit helps.
Dan