Wow… GhostDoc is one of them… I’d only wish the example would have been just a little bit more convincing (
<summary>Saves the Person<summary> — hmm… ok…). But I must admit that it’s pretty tough to really show off GhostDoc’s features in only about a dozen sentences. I’d recommend you watch the video, or even better download and install GhostDoc. In case you’re impatient, the help file has a short chapter “How do I see some action without reading boring stuff?” ;-).