Through out the game, the quest log will be capped to 20 many times. The guide makes use of maximizing the total amount of quests you can accept at once. Because of this it is important to follow the guide exactly and only accept quests if the guide tells you to so you won't run into issues not being able to accept a quest. If you do accept a quest that is not listed in the guide, write it down because you may need to abandon it in order to keep following the guide if your quest log is full.
Create a Bank Alt and level it up to level 5 - The leveling part is very important because you can pick up Enchanting after you reach it. In Classic, you can disenchant EVERY uncommon item of every level, if you have the enchanting profession. Disenchanting weak BoE Uncommon Items and selling Enchanting Materials on AH will help you make some extra money out of otherwise Vendor-destined gear. The Bank Alt will also serve as your high-capacity storage for various items* that are bound to rise in value over time or might come in handy at a later date. Overall, this is a must-have, as it will improve your overall leveling and Gold-making efficiency, let you store additional items, allow you to consolidate your Gold on a single character, and provide you with a way of squeezing some extra Gold out of various Items.
Whelgar's Excavation Site - This Dwarven excavation site was overrun by Raptors (Mottled Scythemaws and Mottled Razormaws). These reptiles are a great source of Medium Leather (you should have Skinning Profession if you want to farm here, as a very large portion of income that comes from this spot is acquired by Skinning Raptors). They also drop some Vendor Trash Items and Raptor Eggs (these are convenient, as a Cooking Recipe for them comes from a Quest that is located just above the Site) that can be used for Leveling up Cooking Skill. However, the best part about this spot is that both Raptor types present here drop level 19 Twink Gear (Feet of the Lynx, Sentry Cloak, Redbeard Crest, and Twisted Chanter's Staff) that will achieve astronomical prices at the later stages of the Game (drop rates are very low, so some RNG is involved, sadly). Recommended Level - 25+.