I do something similar for specific threads that I want to "catalog" for later reference, but without all of the Word-related activity (open, copy, paste, save, close etc).

(This is in Firefox) I created a Folder "ETS Threads" in my Bookmarks list, and simply bookmark the first page of the thread (in cases where a thread runs into multiple pages) into that folder. Sometimes the assigned default name suffices (which BTW, is the thread title); other times, I'll rename it to better describe and hopefully, make it easier later on to remember why I bookmarked it.

In your case, you could rename the bookmark to include the "leave-off date."