Frequent tipster Danny Korem sends an AutoCAD tip about hyperlinking your DWG files to other files where you can document changes to a drawing.
"This could be the best way to keep track of changes and modifications in your project's sheets. We all know that any changes should be tracked and placed carefully in any sheet, and all relevant referents must get a new copy of any modified sheet. But is there a better method of communicating and keeping track of these changes? By pressing Ctrl+K, you can create a hyperlink from any AutoCAD object to any document (Microsoft Office applications, PDFs, and even sound recordings). That means you don't have to rely on memory, and you can fetch the desired document or file quickly. It takes just seconds, and it's worth minutes to hours of work."
Notes from Cadalyst Tip Patrol: This is a great tip — I've always wanted to use hyperlinks in a DWG file. The tipster is right; it only take a few moments to set up and apply, but could save hours of endless searching, recalculating, guesswork, and head-scratching. This tip could potentially save you from asking, "Why did we do that?" ever again.
Make a revision worksheet or document and hyperlink to it whenever a change is made. Create a subfolder where these notes are stored. Each DWG file could have its own document with a link.