Ask HN: How do you use your Twitter favourites?

I recently started using it as a "like" button. So I don't have to reply with "thanks", "cool" etc ...

I personally do not use favourites. I have friends who use them in conjunction with http://faavorite.com/. It might be worth checking out that site to see how your idea differs.

I don't use the favourites feature at all, but I might use them more if there was some additional benefit beyond 'bookmarking' them.

I use them for the same reasons you use it.

I use them as "Bookmark".