I could swear there is a way to see loot on the ground with a "name bubble". Often times it drops behind something on screen and in big fights I just forget where it dropped. Many items blend in the with the background and while I can hunt with the mouse, I'm sure I'm missing stuff. Is there a way to see all the loot that is on the ground at any given time?
Hold Alt to show the names of all the loot on the screen.
From here, you can even click on the names that appear to pick the items up, so you don't have to hunt with your mouse in the general area on the ground to find the loot.