Don't worry about a bath unless your cat has
fleas...cats can usually wash themselves with
their tongues.
Brush your cat daily to prevent those yucky
hairballs that you have to pick up. Also, go
to a store and buy cat hairball gel...it helps
prevent hairballs.

• Use a wire brush to clear fur down to the skin to
  avoid matted areas -- long haired cats are prone to them and it can be painful and cause irritated areas underneath the mats.
• If your cat does develop matted clumps of fur, consider taking him/her to a groomer to have the areas trimmed up. You can cut the mats out but be EXTREMELY careful not to cut into the skin which can happen more easily than you would think as the mats are usually tight against the skin.
• Encourage adequate fluid intake. Keep several bowls of water around the house and ensure they are ALWAYS filled with fresh, clean water (wash the bowls!!). Alternatively, you could buy a pet water fountain (remember to clean it regularly!).
• Feed your cat both dry food and wet food -- both in high-fibre/light formulas as Maine Coons are prone to excess weight gain and digestive problems related to ingesting their long fur while grooming.
  
  Warning:
  
• It is strongly suggested that you trim your cats claws prior to bathing him. By acting calm and speaking in a soothing voice, you can reassure your cat. If you need more personal advice, consider visiting a cat show and talking to people who are showing beautiful well groomed Maine Coon