Everything is dishwasher safe and the mat keeps the dishes from being shoved and water on the mat (for the most part). Plus there is only a need for a couple of bowls that mom cleans (once a day) and refills as needed (usually twice a day). She has noticed that the ceramic tends to keep the water a little cooler too.
Tommy enjoying a drink
(yes, he drinks from the very FAR edge of the dish)
Mozart shows up the screens and our cat ladder
These sit in the track where the window goes up and down and keeps cats from laying IN the windowsill and potentially pushing the screens out and escaping (or falling). It allows air in and out but keeps everyone safe.
At least until someone gets JUST big enough to figure out how to escape.