1. The document outlines six rules for effective shelf layout based on observing shopper behavior over 20 years. The rules are to organize shelves to make shopping easier, align shelf structure with how shoppers search, reduce search time, structure shelves for "decided" shoppers, group similar products to help selection, and prioritize search features on product packaging.
2. Following these rules can increase sales by spending more time on selection versus search, as search time is a negative experience for shoppers. It also improves efficiency by meeting the needs of most shoppers who already know what brand or item they want.
3. Properly grouping products and prioritizing search features on packs can help both "decided" and "