Four lefts and a right and you're there!

Type /wp to set a waypoint at your current location.

Or you can pass in specific coordinates: /wp 12.34 56.78

You can share your coordinates to different channels even if they don't have the AddOn: /wp share, /wp share guild, /wp share whisper NAME(-SERVER).

The AddOn can sometimes even set a map pin when you're typically unable to at your location/on your current map.

Public Domain