Step 1: Download Auctioneer or Auctionator
Step 2: Sell anything that isnt vendor trash on the Auctionhouse
Step 3: ????????
Step 4: Profit!
Seriously. An easy way to make gold it to use the in game auctionhouse. It may seem dumb, but there are people out there who either don't like it or don't know what it is.
I have a friend who never used the AH unless it was for something that could sell for a very large chunk of gold. He didn't like posting things for whatever reason.
On a kinda related note.....trade chat sucks. If you try to make fair market value on an expensive item, prepare to be flamed. "12k for that!!! I will give you 1k and you would be lucky to get that much."
I see shit like this all the time. People think they are being trade chat heroes or something. They are similar to the people who undercut to less than material costs because selling it for too much is "wrong".
Another trade chat related issue for me.....people asking for price checks on items. I normally wont give them a price check, but will ask them what they want to sell the item for. If it is a deal, I will snatch it up. If it isnt, I will try to negotiate or give them a ballpark number. I don't know how many times I see someone ask for a price check (or barking to sell for that matter) where someone comes back with the VENDOR price for the item. People really are idiots.
Anyways, move along. These are not the tips you are looking for. Move along. Move along. :p