How can I make a litter box more accessible and comfortable for my arthritic cat?

To make a litter box more accessible and comfortable for an arthritic cat, consider using a litter box with lower sides for easier entry, placing it in a quiet and easily accessible location, providing a soft and supportive mat for them to step on, and ensuring the litter is shallow for easier digging. Additionally, consider using a litter box with a ramp or stairs for easier access.