Automatically notifies you when you do not have all five of the large experience buffs, or if any of your plots are broken.
Once you close the window, it will not notify you again while in the same housing plot until you need to be notified again due to changing buffs or housing plots breaking. Changing zones or reloading/revisiting your house will also cause the window to display again (if you are missing any buffs).
You can see the window at anytime by typing "/restxpbuffs" in the chat window. And if you keep the window open while on your housing plot, it will dynamically update as your buff and housing plot status change.