Kitty Litter

1. Cats

1.1. Sabine

1.2. different breeds

1.3. short hair

1.4. long hair

1.5. no hair

1.6. various body functions

2. Litter brands

2.1. Natural

2.2. crystals

2.3. clumping

2.4. feline pine

3. Environment

3.1. recycling

3.2. disposal

3.3. crystals

3.4. body functions

4. snow

4.1. traction

4.2. weight