Related Clues:

• Bath water residue
• Stuff to discard
• Use unwisely
• 'What a ___!'
• Cleaning target
• It's thrown into baskets
• Use inefficiently, as time
• Pond-surface matter
• ___ management
• Useless venture
• Underutilize
• Floating green layer
• Mr. Clean target
• Needless expenditure
• Coffee grounds and orange peels, typically