Item Request Timing - What the cats will ask for in (general) order. Keep in mind, this can be random based on the cats spawned, but generally this is the order you should prepare for.

• Yarn
  
• Cloth
  
• Cotton
  
• Iron
  
• Copper
  
• Sharpener
  
• Box
  
• Apple Box
  
• Fish
  
• Rope
  
• Wood
  
• Pillow
  
• Vitamins
  
• Cat Food
  
• Cement
  
• Catnip Algae
  
• Milk
  
• Catnip Juice

It seems that any cat may request food/drink related items. Organize any food-specific shops by what you can keep in stock successfully.

Essentials

• Box
  
• Cat Vitamins
  
• Cloth
  
• Yarn

Foods

• Apple
  
• Cat Food
  
• Catnip Algae
  
• Catnip Juice
  
• Chewing Gum
  
• Fish
  
• Mice Cold Smoothie
  
• Milk

Luxury

• Bling
  
• Gems
  
• Gold
  
• Hammock
  
• Pillow
  
• Wooden Cat House
  
• Yarn

Materials

• Cotton
  
• Concrete
  
• Copper
  
• Iron
  
• Rope
  
• Wood

Tech

• Battery
  
• Graphics Card
  
• Lasor Pointer
  
• Microchip

Since this cat will purchase five or more items, it is worth considering to make a separate shop for them!

Preferred Item: Cotton
Will Also Purchase: cloth, box, fish, yarn,

Preferred Purchase:
Will Also Purchase: Yarn, sharpener

Since this cat will purchase five or more items, it is worth considering to make a separate shop for them!

Preferred Purchase: cotton,
Will Also Purchase: concrete, copper, iron, rope, wood

Preferred Purchase:
Will Also Purchase: Sharpener, apple box

Preferred Purchase:
Will Also Purchase: box, apple box

Since this cat will purchase five or more items, it is worth considering to make a separate shop for them!

Preferred Purchase: yarn
Will Also Purchase: cotton, apple box, fish, vitamins

Preferred Purchase: Cat Food
Will Also Purchase: Pillow

Special/Rare Cats have a very low spawn rate, so there are very few opportunities to check what they purchase. Due to this, I will not be listing by separate preference levels.

Assassin Cat: Cloth
Solid Cat: Box

This list is a suggested list of items to be sold by each shop. Items listed alphabetically. My configurations work best for early-game.

Please leave suggestions in the comments containing your Configuration ideas. Include a screenshot of how you'd use early-game cat-sorting to complete it, please!

Configuration 1: All The Line-Splitters Will Be Needed (by me)
Shop 1: Regular Cat Shop
Sale Items for Cat (Regular)

• Box
  
• Cloth
  
• Cotton
  
• Fish
  
• Yarn

Shop 2: Grannie Cat Shop
Sale Items for Grannie Cat

• Apple box
  
• Cotton
  
• Fish
  
• Vitamin
  
• Yarn

Shop 3: Worker Cat Shop
Sale Items for Worker Cat

• Copper
  
• Cotton
  
• Iron
  
• Rope
  
• Wood

Shop 4: Mixed Shop
Sale Items for Clerk Cat, Middle Class Cat, Wholesale Cat

• Apple box
  
• Box
  
• 
  
• Sharpener
  
• Yarn

Shop 5: Final Cat Shop (final shop for whatever falls through the cat sorters)
Sale Items for Hellbender Cats, Specialty/Rare Cats

• Box
  
• Cat Food
  
• Cloth
  
• Pillow
  

Configuration 2: Pending...


Want to suggest your own? Use this as a base:
Configuration 1: Name of Configuration (by Your_Username)
Shop #
Sale Items for

• 1
  
• 2
  
• 3
  
• 4
  
• 5