I shan't be long, mother's using Sunlight".
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
The child's playful assurance of effortless domestic washdays. Showing children playing freely while mother finishes laundry early proves that revolutionary soap eliminates washday drudgery.
Steal this when
When demonstrating laundry soap efficiency through children enjoying an unburdened mother's free time.