I just got my cat, Cornelius back from a three month stay with a friend. She took such good care of him that he is half the cat I knew! He was 25 pounds so now he is 12!
I got a cheap cat food dish and a place mat and she used them for water and treats, but a bowl for food. I found that putting a smaller Corel bowl in one side required it to be washed each day.
So, I went to the dollar store and got 100 coffee filters which can be tossed when he's due for a refill the next morning. For just 1 penny a day, I save water, electricity, soap and energy; namely mine.
I hope this helps!