Best way to access old(er) threads?

Some threads on here are quite informative and I've wanted to revisit them and re-read them. I found that there really isn't an easy/convenient way to do so. I guess searching for them is an option, but one would have to remember the correct terms each time to search for.
I was thinking of marking the thread as "watched", but if it hasn't been updated recently, I would have to sort through every post i've posted in (which makes each of those threads a "watched thread").

Would it be possible to include a link somewhere on our profile page, or anywhere, which would enable users to "mark" a thread as a "favorite" and then easily be able to access them?
If something like this already exists, can someone point me in the right direction on finding it please?

 

I wasn't asking for smart ideas, buddy. I'd rather a code change/rewrite coupled with a new gui, just to appease my request.


Thanks. Sometimes the obvious answer is overlooked.