1. Predict the Market.
This is the most effective and all time WoW Gold Tips, you can keep your crystal ball in the closet: All you need for this is a bit of creative thinking, an affinity for patch notes. For instance, if the notes claim that a new instance is about to open, and you suspect it's going to require Arcane Resistance, stocking on Arcane Resistance Potions, Trinkets, Materials and Items would be a very wise thing to do. Chances are they prices will rocket at some point, even if not immediately.