Don't trash anything. Typically, gray quality items are worth more WoW Gold to vendors than most other items. White quality items are very deceiving. But believe it or not, many of them are actually reagents that can sell for very well on AH. White level armor is pretty useless. Each increasing level of rarity (green, blue, purple) increases the AH value of that item.
Grinding is quiet tedious and tiresome. But if you are going to get a good amount of wow cataclysm gold which would be useful to get your mount, its worth doing!You can make your grinding profitable if you do it at the Elementals. Travel towards the south of Badlands to reach the Elementals. The elementals drop Elemental Earth and Deeprock Salt. The Elemental Earth sells for a few gold a piece at AH.
To Install the Auctioneer addon is a very useful information, and many people have made thousands of wow gold off of this tool. It tells you much more detail about every item you search for. One of the most important details displayed is the percentage on the right side.
Jaunt towards the Barrens and seek for Deviate Fish. You can seel each Deviate fish for around 20 silver. Don't stop fishing with just one or two .You can collect a handful and make a huge profit here. If you are a good chef and if you have cooking fire, make the Savory Deviate Delight from the Deviate fish that you have got and try selling the delight and that would defintiely be lucrative.
A mule is essentially your bank and auction character. This toon is one that sits by the mailbox to either stash or sell your gear. This WoW Gold Making tip saves you much time, since you won't have to go to a major city to empty your bags. Instead, simply mail it to your mule, who will receive it instantly. Then you can go on with your other WoW Gold Making plans.
If you are a Miner/Engineer by profession Mining and Grinding at Screeching Canyon is an ideal strategy to tag on to, to get the wow gold that you need to get your mount with ease. Move towards the south of the Barrens, The Gold Road gives way to the Great Lift, which in turn takes you down into the pits of Screeching Canyon in Thousand Needles, a red rock canyon. You can grind the vixens and start drawing out iron out of the iron mines.
Work your professions is easier said than done, you'll have to spend a lot of time and money leveling up those skills. However, the items you produce can have a lot of value if you know how to work them.