Sorted by the animal, not by the product
A customer arriving at a pest control shop has an animal, not a product category. They know there are rats. They do not know whether they want a bait, a trap or an ultrasonic repeller, and a catalogue organised by product type asks them to decide before they can look.
A browse by animal type row across the top: snakes, rats, cats, dogs, birds, insects and rabbits
Product categories kept alongside it, for the customer who already knows what they want
Both routes landing on the same product set rather than two separate catalogues
Parts and accessories given their own category, because a repeller that needs a new stake is a repeat customer



A customer can start from the problem rather than the solution
Two ways of thinking about the same catalogue, without maintaining it twice