This is a republishing of Kate Gregory's talk on the what and the how of extending Visual Studio.
Many developers are not even aware that Visual Studio can be extended. In fact, many developers are not aware that Visual Studio can be configured - hiding some toolbars and tool panes, changing your fonts and so on. This talk encourages attendees to make Visual Studio their own, and to consider using extensions to support their own way of working.
This is a 200 level session for people who don't know what extensions are. There is no code in it, and the slides are generally not dense with information.
PowerPoint and speaker notes available here