TransmogKit: TL;DR

A better transmog window. Find appearances by color, set mounts, hearthstones and titles per outfit, pick weapon effects, and undo mistakes. Only things you own are shown.

What you get

• Color finder: search by one color, several colors, or a theme (Black & Gold, Frost, Fel Green...). One click matches your whole outfit's colors. Shift-Right-click any piece to find matching pieces in every slot.
• Name search, NEW badges, "Hide this slot", and an Undo button.
• Weapons: pick Main or Off hand, change sheathing, and browse a grid of weapon effects on your own weapon.
• Shoulders: "Transmog shoulders differently" with Left / Right buttons.
• Mounts, hearth and title per outfit. Drag the TMK_Mount and TMK_Hearth macros from /macro (General tab) onto your bars once. They follow your outfit.
• More tab: settings, export/import, copy setups to another character, saved looks.

That little round button on my screen?

It's the outfit button, and it's meant to be there. Left-click to open or collapse a list of your outfits and swap anywhere. Shift-drag to move it. /tmk button hides it. To fill it, drag outfit icons from the transmog window onto any action bar slot (a hidden bar works), then click it.

Start

Install, fully restart WoW, visit a transmogrifier, and open the Finder tab. Settings are under Finder, then More. Commands start with /tmk.