Leveled 60 characters to level 60. It took about a year and a half and finished 2 days before pre-patch. No boosting, no questing, just grinding rested exp. : r/classicwow
Rested Experience - Wowhead
Can I bank rested exp for wotlk at 69? : r/classicwow
XPTracker - Addon for Classic WoW - 1.13.2
Best Servers on Vanilla WoW (Classic Era) for a New/Returning Player - Warcraft Tavern
How to move your XP bar in the UI in World of Warcraft: Dragonflight
Leveled 60 characters to level 60. It took about a year and a half and finished 2 days before pre-patch. No boosting, no questing, just grinding rested exp. : r/classicwow
WoW Classic Guide to Rested Experience - Warcraft Tavern