WowAce

Battleground Timers in a HUD around the Blizzard BG status

A fully featured library tracking all ongoing absorb effects

GrindStatus

Monk Brewmaster/WindWalker Priority and Buff/Debuff Tracking Tool

SkadaScroll is a plug-in for Skada Damage Meter that provides additional options for scrolling the bar displays. It requires ...

HazLoot

FuBar_OutfitterFu

Persists collapsed state of headers across wow sessions.

mHud

Cryolysis 3

SacredBuff

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

FuBar_WhisperFu

Adds 3 indicators to each side (top, bottom, left and right).

Helper functions used by my addons, feel free to use them in your addon too

Heal and decurse by clicking on customizable raid/party unit frames

A simple interface for unitframe click casting.

RS_ClassColors

Simple and clean Death Knight displays

Buff reminders and more