This handy plugin for Honorbuddy will use the item called Potion of Treasure Finding (PoTF for short).
How to install!
Normal plugin installation. The folder goes in Plugins
What is Potion of Treasure Finding?
Use: Allows you to sometimes find extra treasure from monsters in Mount Hyjal, Vashj’ir, Deepholm, Twilight Highlands and Uldum. Lasts 1 hour. Effect persists through death. (1 Min Cooldown). Source: Wowhead
Where can i get the item?
Alchemy (525). Source: Wowhead