Keeping the cat off the tree??

Iy

My cat is over a year old and has knocked the tree over already a destroyed a section of lights. It's too late to return it. We put up a prelight artificial tree but didn't decorate it yet to see what he'd do to it. I've read people have sprinkled cayenne pepper in it and it works so we're going to try that but do any of you ladies know of other things that work? Fyi I have a 5 month old baby and two dogs. Thanks