I have now taken the habit to use those and they help me a lot.
The first one is the breakpoint label: I personally use it to associate my bug ticket number with the corresponding breakpoints. When you work on several tickets at the same time and your code base is big, it does help! This Visual Studio 2013: Working with Breakpoint Labels blog entry details this feature.
The second one is the Bookmark window: you can name bookmarks and group them in folders! This one is even more helpful than the first to me! This Setting Bookmarks in Code page has all the details.