Put double-sided tape on surfaces where you don’t want your cat to jump up on.
A plastic pitcher makes an easy-pour cat food container.
Remove a cabinet door panel and add a curtain with a tension rod to hide a litter box.
Make a tiny bed of grass for your cat to chill in.
Create a stairway to heaven for your cat using Ikea Lack shelves.
Cut out squares in a bookshelf to create a kitty exercise tower.