Swamp Jaguars - Western part of the Swamp of Sorrows is inhabited by deadly feline species, the Swamp Jaguar. These big cats drop a lot of Vendor Trash Items (Long Soft Tail and Bristly Whisker), Large Fangs (used in Leatherworking, Blacksmithing, and Alchemy Recipes), Wicked Claws (used in Leatherworking and Blacksmithing Recipes), 12 Slot Bags, and most importantly can be Skinned for Heavy Leather and Thick Leather (Skinning is not necessary for this spot, because of Jaguar's already great loot table). This is one of the best spots for farming your Level 40 Mount Gold. Recommended level - 35+ (you might need to clear other Swamp creatures as well, just to be safe).
Learn only the Essential Skills - Learning new and upgraded Skills gets very expensive very quickly (Buying a single skill that requires level 30 will cost you 1 Gold, and a single level 40 Skill costs 2 Gold) If you buy just the essentials, you can save anywhere from 15 to 30 gold before level 40, depending on your Class. Generally, higher ranks of skills that are used for their utility effects can be skipped (these include Warrior's Harmstring, Rogue's Gouge and Kick, Mage's Frost Nova, and many other CC and utility skills and abilities). Also, don't buy any ranks of abilities that you will not use during leveling (things like Rogue's Expose Armor, Hunter's Eyes of the Beast, Warlock's Eye of Kilrogg, and so on).
WoW: Classic is still in beta stage, so this is still unclear what final shape will the game have upon release. If any of the information above appears to be out of date or inaccurate we will try to update it as soon as possible. We will also appreciate your help with catching possible mistakes and fixing this guide for other players. If you have any feedback on it, please leave it in the comments below.
Acidmaw Bears, Grizzlies, and Maulers (marked BLUE on the map) - The once majestic Bears of Felwood are now corrupted by Fel Magic. Free them from their painful existence, and earn some Gold in the process. Felwood's Bear species drop a lot of Vendor Trash Items (Bear Jaw, Bear Flank, Savage Bear Claw, and Large Bear Bone), 14 Slot Bags, rare 16 Slot Bags, and most importantly can be Skinned for Thick Leather, Rugged Leather, Warbear Leather (used by Leatherworkers for Warbear Harness and Warbear Woolies Recipes), Thick Hide, and Rugged Hide (Skinning is recommended for this Farming Location, as it will greatly increase potential profits).
Check Item's Vendor Price before posting it on the Auction House - Selling items on the Auction House below their Vendor value is a common mistake. Avoid it like fire, and always make sure that you are not losing Gold on your Auctions. If you plan to sell an item on the AH for a price just a tiny bit higher than its Vendor value, you might be better off just vendoring the said item (this will allow you to avoid the risk of losing an Auction fee if your Item doesn't sell).