Ever get irritated by the tooltips obscuring your thread or damage meter in the bottom right hand corner? Wish there was a simple little mod that would disable that during combat so you can see things? TTHide does exactly that. All in about 15 lines of code.
In case you want to temporarily show a tooltip while in combat you can hold down the shift key when hovering over an item or interface element that normally has a tooltip.
/tthide on
/tthide off
/tthide status