I've never understood why Blizzard's UI only allows one linked item to be open at a time. How are you supposed to compare gear that way? Switching back and forth between links via chat is a pain in the arse. Link Wrangler fixes this by allowing 5 link windows open at once. It also adds other features via buttons to re-link, view in the dressing room, compare with equipped items, etc..

It's a simple and elegant addon. I highly recommend it.

(For more addons that I have recommended, see the list of MMOROG articles with the Addon tag)