WowAce

Necronomicon2

Remember locations that city guards direct you to for HandyNotes

Cryolysis 2

SRA

Keeps track of your current location.

GotWood

Sells all junk in your inventory at once.

SacredBuff

Try on different gear and see their total stats and their differences. In short, an ingame CT-Profiles-like addon.

FuBar_TrainerFu

Shows skills in a tooltip and allow them to be used. Also keeps track of Cooldowns.

WhoDrop

A collection of Rogue modules.

UnitActionBars

Switch macro depending on zones or BigWigs boss modules.

Inspects all members of raid and saves in database, as well as lists people's dkp values

Cartographer_QuestObjectives

Visualises healing.

Show item durability and quality in the character frame.

Litmus