You know how we can use the 'Thanked posts' feature to search for posts from someone's else profile/gallery, and then browse through stuff that way?
We'll I was thinking it might be useful if you could do something similar, but instead of a Thanks button, you'd use it more like a Note or Flag button. So instead of searching for someone else's thanked posts, it would be like looking through the posts that you yourself have thanked and noted down as worth returning to. Then you could search through you're own "Noted" posts, to recall the stuff you marked down, so they're easier to bring back up later.
Basically it would be like the reverse of the way the thanks search is set up currently, so not only could I search through the posts that I've been thanked in, but also those posts where I've thanked someone else. Then basically the thanks button, would be like a post-it, or a doggy ears in a book. Since all the information is already recorded it would probably be doable. Searching for someone else's thanked posts is cool, but when it come to yourself, I think most people are probably more interested in searching the stuff that they've thanked, rather than the stuff they've been thanked for.