The first thing I like to do is scan WOW Gold
the Auction House. Next, I'll check some items that I already know have been profitable lately. I found some Copper Ore for cheap and made it into Copper Bars for resale.
That will get me started for day one but I want to see if I can find anymore items without individually searching for each one. My goal is quite simple, find underpriced items to sell for more. Auctioneer is great for this since it has a nice search system that can have its criteria set.
For instance, to make finding items easier I'll go down to Resale and set the search criteria to have a minimum profit of 1g, a minimum discount of 50 percent and uncheck the Allow Bids box. Typically, I leave the Allow Bids box checked but I want to immediately buy and resell items so this will narrow my search. I only have seven gold so I'll also set the Maximum Price to seven gold.
After getting the search results back, I found some items to sell that should sell for more. If you notice I mostly have Enchanting materials. They are great to start on since they cost nothing to list on the AUction House. Most everything sold and looks like we've doubled are money. Just like day one I'll start by checking some conversion items that have been doing well like Copper Ore to Copper Bars.
No go on that so I'll check some other conversion items like Crystallized to Eternal. Looks like Crystallized Air to Eternal Air is pretty profitable so I'll buy some. Earth looks good too so I'll grab some of those as well. Lucky for me I found a Sentry Cloak for 57g which use to be a very hot twink cloak. I'll buy it up for resale along with some other items and do a quick search for level 29 items.