Check out these photos.
You guys are awesome. I had no idea what I was going to do, but I followed your instructions and made a huge cat tree!
Making a Cardboard Christmas Tree
Keeping Cats from Peeing on a Couch
Getting a Cat Out of a Tall Tree
Neutered Male Cat Mounting Other Male Cats?
Kitten Trying to Nurse on People
Teaching a Cat to Use a Cat Door