WowAce

Makes those pesky garrison animations go away.

Gives a score for your kit allowing easy comparison with others, also colour codes kit based on appropriateness for your level.

Resizes some default UI frames (GuildUI, LootFrame, RaidInfo, TradeSkillUI and TrainerUI) to show more lines

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

RootsBidder

Fancy up the PlayerPowerBarAlt frame

Sphere

Spawns toasts for looted items, money, and currencies.

A library to provide tools for formatting money and time.

Open those clams (and other containers)

Fixes strata bugs in UI windows

Saves Auction House search queries.

Shows who controls Wintergrasp and the time until the next battle.

Cartographer_Routes

Adds 3 corner indicators to each corner of the Grid frames.

One-click smart mounting.

Manages tracking of raid attendance, loot, and more.

Short EPEEN

Movable frame library.

Combination of Titan LootType and Roll - stripped down and cleaned up.