Some good reasons for using Sunlight Soap / [Lever Brothers Ltd.] [b1560651x]
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
Lever structured the booklet around factual household economics, demonstrating how cold-water washing preserved fabrics and reduced boil-wash fuel costs. Addressing domestic labor and household expenditure converted washing soap into an essential financial investment.
Steal this when
Steal this when selling consumer consumables by demonstrating measurable savings in labor time and utility bills.