WowAce

Quest helping: fetching items to use, that sort of thing.

Good old LibTourist-3.0 for WoW Classic Mists of Pandaria

ComboSounds

Forces LSM and LibSink to use specific textures and sinks.

Client for allowing the raid leader to gauge interest on items in a method similar to a ready-check.

LDB data source for herb, ore and skinning node data

In-game EPGP guild helper, supports standby, main/alt shared pools, minEP, offpecGP. Fixed price list with progress multiplier.

KC_Mobility

PiraPlex

Group interrupt cooldown tracking.

Welfare Epics

Fubar Plugin for Simple Soulstone

FuBar_MiniPerfsFu

Should I send that recipe to my alt?

TGuildFrame

Poppins

Rawrkitty

AltClick an item in your bag to add it a mail, auction, or trade frame, and alt-click to buy a stack if reagents.

quick quest turnin and acceptance with a shared keybind

BagPress