Related Clues:

• ''Sure thing!''
• 'That's O.K.'
• "Piece of cake"
• "Easy!"
• ''Piece of cake!''
• 'It's being taken care of'
• 'No problemo'
• ''Nothing to it!''
• ''Consider it done!''
• ''Easy!''
• Volunteer's phrase
• Couch potato's comment about the 17-, 26-, 48- and 63-Across 'workouts'
• 'Sure thing'
• 'Immediately, boss!'
• Altar assurance