I have found a rather nifty feature stemming from the WoW Armory.
This page will keep you up to date with what my characters are using as their transmogrification setup. Each time I log out, the page will automatically update the images below with the latest look. For the moment I will only put up my level 85 characters and even then, some (like my Shaman) will not see frequent updates. It will however allow me to chop and change outfits without retrospectively changing some of my previous posts.
Voros – Frost/Blood Death Knight
Althorr – Protection/Retribution Paladin
Ìshara – Survival/Beast Mastery Hunter
Mashan – Enhancement/Restoration Shaman