Here's a great way to make extra gold in World of Warcraft.
This method uses the WoW Legion App, here are some links for download:
Google Play: https://play.google.com/store/apps/details?id=com.blizzard.wowcompanion&hl=sv
App Store: https://itunes.apple.com/se/app/wow-legion-companion/id1125608061?mt=8