Being self taught in getting around on a computer it took me awhile to nose around and find the ''thread tool" icon staring me in the face.
Open a thread and up on the left it says "post reply" and below that it has Linkback , and then thread tools. Click on the little arrow next to that and a menu will drop down. You can "Subscribe" to a thread and it will go into your "User CP".
I guess CP is for command post ? Whatever. If you find a thread that has information you want to be able to easily access it will save it for you in a place where you can get to it. No worries about trying to remember where you saw it later. When you don't need it anymore you can delete it. I have quite a few I refer back to.