We used to have lots of problems with our cats and our Christmas trees. One year we left the bottom one-third undecorated. That took care of batting off the ornament, but not of climbing the trees and sometimes knocking it over.
Another year, we stuck the tree in the playpen. It kept the dog off, but not the cats.
We finally hit upon a solution—we bought trees with such prickly needles that we had to wear thick gardening gloves to decorate them. Cats don’t like prickly needles!
I wonder if anyone has any other solutions to combining cats with Christmas trees.