It is really important to look after your beloved kitty and their quality of life. There are many false assumptions regarding what cats should or should not do. Here are 5 quick tips to improve your cats quality of life.
1. BUY QUALITY FOOD
Providing a balanced and high-quality diet is one of the most important things you can do to keep your cat healthy and ensure a long life. The veterinarian can help you choose a diet appropriate for your individual cat. 
2. REPLACE MILK WITH FRESH WATER
Though milk is not toxic, many cats have trouble digesting it. Most cats are lactose intolerant, just like people and that causes an upset stomach, diarrhea or gas. It is better to replace milk with daily fresh water. 
3. CATS CAN GET SICK FROM EATING CHOCOLATE
Cats cannot tolerate chocolate and consuming it can cause illness. Cats are carnivorous by nature and they do not have a taste for the sweet stuff. Do not leave sweet things lying around so they cannot find them.
4. GIVE THEM ENOUGH PRIVATE SPACE
If a cat is relaxed enough and has entered a deep sleep, their little minds produce the same brain wave patterns than we do to send them into dreamland. On average, a domesticated cat spends approximately 2/3 of its life asleep.
5. CATS LOVE CLIMBING
Cats are climbers and scratchers. It is what nature compels them to do. Therefore, especially for indoor cats, you should provide a climbing tree. You will see what a great climber your cat can be.