Make More Money in World of Warcraft

• Know the market. In order to make more money in World of Warcraft, you really need to know the market. Not every item has the same demand on every server, which means the prices vary. Before selling an item, you need to know where you will receive the most money. Before buying an item, you need to know where you will get the best deal. There are many opportunities to make money by selling to other players, but the trick is to buy at the lowest price and sell at the highest.
• Know your items. While buying and reselling is a great way to make more money in World of Warcraft, it only works if you are dealing with items that people want. Rare items and items with more uses will sell quickly and for more money, but there are some common items that are in demand by other players. Research your items, and know what you are dealing with before buying or selling.
• Watch the Trade Channel. By watching the trade channel for deals, you can make more money by buying low and selling high. Players often try to compete with the Auction House, which means they have lower prices in order to get your business. This works out even more in your favor when the market for a particular item is down. 
• Use alternate characters. One way to make more money with an ALT is to keep the character in a capital city, where a mailbox is easily accessible. Instead of having your main character travel back to town to sell items in the Auction House, your character can mail the items to your ALT. Once you log back in with the ALT, you can retrieve the items and post them. 
• Get a mount as quickly as possible. Granted, you have to make enough money to afford the mount before you can get one, but you should not hesitate once you have the money. Having a mount boosts your speed, which can help you earn more money by allowing you to harvest faster. Of course, you can also travel faster, which helps in every area of the game.
• Customer service. Although it may seem corny, providing excellent customer service is an easy way to make more money in World of Warcraft. Players choose to purchase items from you, but you are not their only option. Being nice to your customers increases your reputation, and also increases your chances of selling to that customer again in the future.