If you're short on space, make yourself a hanging cat scratcher that easily attaches to your walls or around your doorknobs without getting in the way.
DIY Cat Scratching Post That Literally Lasts for Years! - Dream a Little Bigger
MICHIS DEL MUNDO: Palo Trepador - Rascador para Gatos
Hey, I found this really awesome Etsy listing at http://www.etsy.com/listing/124318657/wall-mount-scratching-post-for-cats
Watch Martha Stewart’s How to Make a Scratching Post for Cats Video. Get more step-by-step instructions and how to’s from Martha Stewart.
"Catscraper" | DIY cat scratching post / scratcher made from recycled cardboard // Could make this into Rapunzel's tower and put this in a kid's room.
DIY Cat Scratch Post More
11 Creative DIY Home Projects for Cat Owners | Cool Crafts For Your Kitty by DIY Ready at http://diyready.com/11-creative-diy-home-projects-for-cat-owners/
This is just lovely - DIY Cat Climbing Tree ~ Tips and how to Finish ~ I've always wanted trees in my house with the branches reaching out across my ceilings - at least in every corner in every room...
Make your own scratching post for under $10.