Island expeditions are very easy to complete while leveling, particularly before hitting Level 116 when your legendaries are still in effect and your secondary stats have not been squished by leveling scaling yet. Island expeditions can be completed in 5 to 10 minutes relatively reliably while also acquiring some of the pets, mounts, and Bind-on-Equip gear available. There is also one weekly quest to do one island expedition, so for slowly leveling alternative characters, be sure to complete at least one island expedition each week.
I do not recommend going for TBC, although I remember Hellfire peninsula to be decent, everything else is rather slow. Instead go for WotLK, Borean Thundra gets you levelled very fast, and then you can head straight for Icecrown at 67, which is also insanely fast, although admittedly has a few elite quests. You can go to Sholazar Basin alternatively. 2 zones should get you 60-80 no problem.

Once you download the addons from the website to the downloads folder, you can right-click on the compressed (zipped) addon folders, and select "extract all". After that, you go to Windows folder, click Program Files (x86), and scroll down until you see World of Warcraft. Then click on Interface, and then select "Addons". After that, select "extract all" to transfer unzipped addon files to that "addons" folder.

The neutral auction house can become one of your best friends. Other players are constantly checking both factions' auction houses to find an appropriate price for the good they demand. Often times, goods are cheaper on the alliance because they have more people, thus, the supply increases as demand decreases and price goes down. If you are horde, feel free to transfer gold to your alliance toon through the neutral auction house in order to buy them item and bring it back to the horde side where it is more expensive. The 15%, as of patch 3.3.3 (down from 30%) is well worth the extra 50% or more you can easily make on one item alone. Blizzard decreased the neutral cut for a reason to 15%, that reason is to get trade facilitated between the horde and alliance. Make sure you take advantage of this! Tips when trading between factions:
This is a VERY GOOD potion of treasure finding farm that generally shocked me when I stumbled upon it.  In this video it's one of the more popular farms – just because it's potential to tap into soo many different markets (especially if you are a skinner).  It takes place at the pit of scales near the foot of the uldum river.  It allows you to not only gather tiny treasure chests faster than any other spot, but also awards an obscene amount of leather.  Just step on the eggs and 5 crocolisk will attach to your character.  Kill them all and start skinning them.  There are 6 egg spawns with very short respawn timers surrounding the area.  You will literally never be waiting for respawns.  Again, skinning is a must to take advantage of this mega spot – and even though, I feel only a handful of farms surpass this one, It's truely my favorite.
There are addons for ElvUI on Curse, but unlike the other addons on this list, ElvUI itself can has to be downloaded separately. Despite this, it is probably the most useful in terms of UI customization. ElvUI is a complete UI overhaul that allows you to fix many of the basic customization issues that the original WoW UI has. The big drawback to ElvUI is that it is a bit of a time investment when you first download it. It takes a while to get used to, and you’ll have to take the time out to fully customize your UI. This can feel vastly different from other addons that are mostly set immediately once you’ve installed them. If you’re willing to put in that time though, this can be a really effective tool in organizing your menus, and having a better visual experience playing WoW. With this addon, you won’t need some of the other ones, such as Bagnon, which ElvUI already has built in.
So how do we beginners and normal folk go about this business? We treat it as a side-hustle. A little bit of work in transmog can go a long way down the track, but the key point is that it will take time for you to see the fruits of your labour. Make sure you have gold from other activities that can bankroll you, while your transmog business is built up. This can be professions, carry runs, current content farming for materials, whatever it is. In these early stages, DO NOT waste time making transmog your main source of income, especially if you need gold now or soon. Transmog early on is best treated as gold over time.
The expansion is set immediately after the events of Legion.[4] Two continents have been added within the Great Sea between the Eastern Kingdoms and Kalimdor: Kul Tiras, one of the major human kingdoms, and Zandalar, the homeland of Azeroth's trolls.[4] While the Alliance and Horde will initially travel to one continent respectively, both continents will be available to both factions at level 120.[4]
Now lets get to a "math". You need 10k reputation for a cache. For a daily emissary quest, which gives the rep the fastest way you receive 1.5k reputation. Since the quest needs 4 of the world quests for said faction, lets total them up to 500rep which gives 2k reputation for an emissary cycle. Lets optimistically say that you require 3 minutes to reach a world quest and finish it, totalling at 12minuter per 2k reputation. It would mean that you spend an hour total on a chance to get up to 5k gold. Ofcourse there would be some exceptions to that, such as tortollan quests that need only 3wq, rare quests that give extra rep and more rep in general or for example follower missions for extra rep (but those require resources). But there is also a fact that you might take more than 3 mins to finish a wq which negates that.
Flying in World of Warcraft was introduced over ten years ago, in The Burning Crusade expansion. It gave players the opportunity to explore Draenor on their brand new shiny flying mount. You can now fly in nearly every zone in World of Warcraft, traveling the game’s expansive continents and complete content quickly and efficiently. Perhaps too quickly and efficiently for the some developers, who hoped players to experience the rich world they’ve designed as intended.
Materials ('mats') - items that get used in professions. This is driven more by use than by source; for example, copper is very easy to mine, but it is widely in demand, and you can often find bargains in copper, bargains you can profit from. Contrarily, some very scarce mats may have low demand, may only be used in one mediocre recipe, and may not sell.
Similar problems have risen in the leveling system, which automatically scales to the player’s level and equipment. For the most part, you’ll vaporize enemies more quickly as you gain power, but there are some weird dips. Many players complained they felt less powerful at level 119 than at level 110, a problem I experienced myself. And world PvP remains a strange and whacky world where level and class balance issues make wins and losses feel destined instead of earned.
Now that you have these addons, it is time to set them up properly to be used as effectively as possible. With the first addon listed, Auctionator, you will get three additional tabs when you open up the auction house: buy, sell, and more. Buy and sell are easy to follow and read, the primary reason why this addon is the top choice and listed as number 1. You can easily set how much to buy or sell, ranging from 1 individual object to stacks of the same good. The most important way to search is by price per individual item. This will avoid both overpaying and underselling, since you can see what one item in a stack is worth compared to what it is worth when being sold on its own. The "more" feature provides an easy-to-follow window of all your auctions up and the details associated with your auction, such as price and time left, in a nice color coded fashion. Without this addon, you will be severely crippled compared to anyone using this efficiently. If you are afraid of addons for security reasons, the rest can be ignored as long as you have Auctionator!
These books cost 1.000 Gold each and are sold from your BfA gathering profession trainer. As soon as you re-learned your farming profession, use this book and you will get back all of your lost Battle for Azeroth gathering ranks. Your gathering skill remains reset at 1, but you don’t have to care about that since you have your ranks back – thats literally all that matters.