Folders as a way to organize Bookmarked Questions?

I love the bookmark feature, but I have a tendency to over bookmark and generally, there are different reasons I may want to view a certain question or a group of them together. For example, questions that I did not get wrong, but found difficult. I know we can filter by correct, but that still makes it difficult to find the questions. I think it would be helpful if we could have folders that we could name whatever we wanted and could put questions in, so we could organize them and find them easily!