WowAce

Max Camera

A replacement tradeskill window for Classic

Compact rune and proc display for Death Knights.

Displays the locations of Lunar Festival elders.

Rebuff yourself with the mousewheel.

View an image of your guild vault from anywhere.

Smart mount randomization on a button! Empty coconut halves not included.

Keeps track of space left in your bags.

Keeps track of current money and all your characters on one realm.

Keeps track of durability and pops up a dialog to repair when you go to a vendor who can.

Good old LibTourist-3.0 for WoW Classic Mists of Pandaria

Tells you if you're buffed

Questing minion

Display Garrison missons for all Characters

GrindStatus

FuBar_WindFuryFu

Bind spells, items, and macros to keys, without using action buttons

IncomingHealsLib

DogChow

LDB display of currencies, gold totals and session / daily / weekly statistics for all characters on a server.