Picking up herbalism and mining is the best professions to have while leveling. Not only will you earn gold as you level, but you will also get extra XP. At level 20 you will get over 500 XP for picking up a ore or a herb while killing a mob only gives a little over 100 XP. Don’t go out of your way to pick herbs if you are trying to level quickly, but pick the ones that are on your way. Leveling from 110 to 120 can be done pretty quickly just by doing this. There are a few items that will help you if you decide to use professions while leveling:
Here's the first of my 3 top legion skinning farms. They are my favorite for a reason – with the right skinning perks, you can make thousands more gold than the average farmer. Overall, these are the most profitable legion farming spots, period. With the oddly shaped stomachs drops you can get access to leylight shards, leystone ore, and felslate along with a variety of other highly-liquidable trade goods to boot. In order to get these tiny treasure chest like stomachs to drop, you need to get your hands on the gutting perk, which can be purchased by trading 250 sightless eyes at the quartermaster in the dalaran sewers. On the other hand the butchered meat drops will award stormscale and stonehide leather, making these skinning spots some of the most gold healthy spots in the entire game. I hope you all jump on this.
For more than a year in WOTLK I did nothing but raiding and some dailies here and there. I leveled a bit on a few alts and, as all are aware, it cost to support alts sometimes. I did dailies, and LFG quests until the Dungeon finder came along. I did 2 or 3 randoms then logged off if not a raid night. I was bored with the grind of dailies and wanted a change.
Mythic+ has some similarity to raiding, but it’s designed for just five players, instead of the 10-to-30 that can make up a raid. This mode tasks players with clearing the game’s dungeons, but with specific changes that make them harder, scaling up until it’s impossible for groups to finish. Players receive a keystone in their inventory that assigns them their dungeon, one of the game’s 10, and gives the dungeon a level. This determines how difficult enemies are and what effects might make them harder. If the group completes the keystone in time, they get a new, higher-level stone; if they, don’t they get a lower-level stone.
The most important part of saving is to never buy equipment unless you're positive that it will increase your earning potential, or significantly speed your character's leveling progress. While it is true that gear is important (particularly for melee combat characters), it is also true that an overemphasis on having great gear before maximum level is dumb. Who cares if you're wearing a green sword at level 43? If you're advancing well, you aren't going to be level 43 for very long anyway. The only gear that currently "counts" is max level gear.
Although the Battle Pet Trainer will only offer to teach you your race-specific companion, it is possible to add all of these pets to your collection. You can either find them in your faction’s auction house or you can create a character of the race whose pet you would like to learn. Using your new character, you can seek out any battle pet trainer in major cities. After you learn the pet, you can delete the character; the pet you learned will not be removed from your collection.