You could try putting them on the watch list under "My Stuff", or copy and paste into a word doc and title them appropriately. Or you could just post something on them and you'd be able to retrieve them that way also, but, I caution you, you may end up with more than 5,678 posts! (ha, ha, Bert)
Seriously, someone may have a better way to do this, but I copy and paste a lot, and then organize them in Word. They also beccome available to my staff as well.
Tom