Pet owners can use this calendar to compassionately note the daily quality of life of their cat, dog, or other animal. It is intended for senior or ill pets who are experiencing appetite changes, excessive sleeping, lack of interest in favorite activities, mobility problems, pain, or other issues. You can put a check in the box for a good day and an X for a bad day, rank the day from 1 to 10, draw happy faces, or use any system you choose.