Tanaris quests and pirates on the eastern paninsula for grinding. Stranglethorn vale quests (only if you need rewards imo). Badlands greater elementals for grinding.

48-52: Felwood deadwood gnolls for grinding and quests from the sanctuary in the south. Blasted lands dreadmauls for grinding. Un’goro crater (best started at 50) for primarily quests and grinding off the plants and tar elementals. Azshara undead highbornes and thunderhead hyppogriffs for grinding.

52-55: Azshara blood elves for grinding. Burning steppes dreadmaul rock ogre caves firegut ogres (very low AC) for grinding. Felwood irontree woods and cave for grinding (great spot). Western plaguelands questing for argent dawn and grinding on undead throughout the various camps.

55-58: Eastern plaguelands quests from the sanctuary, grinding on undead at the ruined towns. Winterspring grinding at winterfall village or Lake Kel’Theril undead highbornes (my personal favorite camp). Blackrock Stronghold in Burning Steppes for grinding.
58-60: “The” yeti cave in Winterspring, due Southeast of Everlook (very nice place). Grosh Gok compound ogres in Deadwind pass (great spot, no one knows about it). Eastern plaguelands Fungal Vale undead grinding and argent dawn token farming. Moonowls in northeast winterspring for grinding.

On the above- mentioned content, I hope some of you who are busy in work may benefit some useful tips and clues from the content. It isn’t hard to find out guides to free wow power level if you have full confidence and persistence. the prepared minds always own the golden opportunity