DGs Junk
Tracks the cheapest junk and cheapest non-junk item in your bags with vendor and AH prices, and tells you at loot time whether the drop is worth more than what you'd have to throw away.
Compare your current loot and quickly pick the item you want to replace with your new item
Get immediate insight if item should be looted for value or not
Handy right click menu on frames
Shortcut + Click options to even faster decision making
All settings under your control, share a Default Profile or create one per Character
Manage your ignore or junk list easily with single, filtered or all clear buttons with confirmation or without for faster managing