Beyond that the constant amounts of RNG on top of RNG has made the game not only frustrating but unfun and unrewarding. It is clear with the current game design decisions the goal of bfa was not to create an exciting experience and to refresh world pvp and faction pride, but to test the player base and see how long subscriptions could be pushed with the least amount of content. Class specific raid gear, tier sets, removal of any sort permanent player progression and a complete draining of class skills has left BFA with less and forced players to grind more only with the knowledge that like Legion all your work at the end of the day will be worth nothing due to end game catch up mechanics and removal of the azerite necklace at the end of the expansion.
Nearly all quests offer cash or items as a reward, and often both. While completing quests shouldn't be your main form of wealth generation, it is something you are going to do anyway. The key to making the most of quests is picking your reward items wisely. Don't always pick the item that most fits your class - if it isn't demonstrably better than your current item, instead go for whatever reward sells for the greatest amount to the vendor. You can select the in-game interface option to display it in the tooltip. In general, if you can't use a quest reward for your character, pick either a plate-armor or melee weapon as your reward--these tend to sell to vendors for more than other items.
A stable for any healer. While not every healer uses this, those that do swear by it. It allows you to set spell combinations so that every ability you use is at its optimal effect. Healers have a large range of buffs and healing abilities, and Healbot lets you use the best ones you need when you need to. It’s a great organizing tool for any healer.

If i start on a new realms, I am farming a lot of transmog from classic and Burning Crusade Dungeons and Raids. In the beginning, i start to post them if they have at least a DBRegionMarketAvg (Average value of an item on all EU realms of the last 14 days) of 500 Gold. All the other items get vendored. The time you hit a stock of 1000 Items, my value treshold raises to around 2.500 Gold. All the items below that value get vendored aswell. Newly farmed items that are above these treshold will be listed. Why? If I start over somewhere, I want to get a certain amount of gold quickly. Cheap items are great for that. Later on, to save time, Quality is better than quantity. As mentioned above, re-posting the items on the auction house takes quite a bit of time. At this point, I can recommend you the TradeSkillMaster AddOn, it makes your auction house work really a hell of a lot easier.