This is a once size fits all pet farm that can generally leave you with a small sum of gold if your server is low on this specific pet. (You can always check on the undermine journal).  It takes place in the Ihgaluk crag and is generally performed by sweeping the oozes in the small muddy pools surrounding the area.  An easy spot to hit, that really isn't farmed all to often.  I was able to get one in the video after a small 24 minutes.
Also get the Heirloom Mount. Being able to have basic riding speed from the beginning will save you a lot of time if you're starting from level 1. Allied races start at 20, so this is a non-issue for them. It's important to note that Pandaren can not use this mount until they finish their starting zone and pick a faction. Being Horde or Alliance is a requirement of the mount.

Guild Banners. The Banner of Cooperation and Battle Standard of Coordination will increase the experience from kills. They both have a 10 minute cooldown, but when you use one, the other is only locked out for 2 minutes. I was very bad about using these, so it might be worth using a macro to drop them on your first attack against an enemy. Keep in mind you must have reputation with your guild before being able to buy these, so new character may have a bit of a wait before picking them up.

Before proceeding with the description of this farming method, there is one aspect to be clarified. You’ll be making here 400g-500g gold value, not raw gold. Differently put, it’s a quick farming method for Volatile Air, Volatile Life, and Twilight Jasmine. Requirements: Minimum level 90; Where to go: If you play Horde, use the portal in Orgrimmar to teleport to Blasted Lands at Shattered Landing ... Read More »
Assuming, worst case, procs of 30 monelite ore, in my server they sell for 20g each, so 600g per proc. 5325 divided by 600 is 8.875 missions, rounded up, 9 procced missions in order to make even with pick costs. EVERYTHING after that is pure profit. Its important to remark that the chance is far from 100%, some people say as low as 10% to proc but I didnt find any hard data on this.
If you find yourself coveting your first mount, and with no money to purchase it, try to swallow your frustration and work at earning and saving up so you can buy it honestly. Nothing is more annoying to other players who are working hard to earn their own money than hearing someone begging for gold so that they can buy a mount or fancy piece of gear.
Warfronts are larger, 20-man instances that take inspiration from the Warcraft strategy games. Players are deployed on the Warfront to collect resources, destroy enemy troops, construct buildings, and eventually launch an assault to take over the enemy base. These battles take 20 to 40 minutes to complete and, unlike Island Expeditions, don’t offer a PvP mode.
Patch 8.1.5 PTR Developer Notes 8.1.5 is coming to the PTR very soon and we have some developer notes to find out what's coming with it! The two new allied races are coming, with Zandalari Trolls and Kul Tiran Humans finally within our reach, some new invasions of the Naga variety, some updates for capital cities (new portal rooms) and WSG and AB, as well as new War Campaign quests, Wintergrasp as an Epic Battleground, the return of the Brawler's Guild and a lot more!
Gold for riding training. Travel time is a SIGNIFICANT time sink while using quests to level. You don't want to wait to get it. In fact, while questing, the second you ding 40/60/70/80 you'll want to hearth and train it IMMEDIATELY! 10304 gold is the base cost, which will be modified by reputation. Also, make sure you're in a guild with the 10% riding speed bonus unless you're a class that already gets a mount-speed buff.
The downside is that War Mode will make you vulnerable to other players, which means you might be killed more often. Whether it’s worthwhile will depend on the zones you’re visiting and how active the other faction is on your server cluster. Heavily populated realms usually mean more players on both sides, and more conflict, but on quieter realms, you may rarely run across an enemy.
As an example, I will take my server values to calculate how many procs you need to make up the price of one Magnetic Mining Pick (40 SS ore, 10 Platinum ore, 15 Expulsoms). Assuming 25g per SS ore, 20g Platinum Ore, and 55x the price of Tidespray linen to craft 1 expulsom in average (got the value from a previous post in this subreddit); 1 Pick is worth 5325g (not counting the elemental flux).

Let’s consider the fact, that the token price is rising again with the Virtual Blizzcon Ticket and possible Addon-Announcements for Blizzard Games. The reason the token is so cheap right now is the fact, that a lot of players bought Tokens for real money at the Shop. The more tokens are ingame, the less gold they cost. Supply and demand is the keyword here.