If you pay much attention to this site you have no doubt encountered pictures of my cats. I have five of them, which is kind of mental, but I love them and they certainly make life interesting. Without them, I wouldn't need to replace the carpet on my stairs, or have to investigate poop smells nearly as often! See, every day is an adventure. But in all seriousness, they are a lot of fun and I couldn't imagine life without them.
People have gone to extremes to ensure their beloved critters will be with them forever, from actually cloning them to preserving their bodies through taxidermy. Both are probably signs of some mental disorder and should be medicated accordingly, but I recently stumbled upon a company that takes the creepiness out of remembering your buddies for eternity. They're called Cuddle Clones and they make exact replicas of your pets in plush form. You send them a bunch of pictures and they recreate the fuzz balls as adorable stuffed animals. It's a neat way to keep your pets with you without scaring your human loved ones away. Check em out at http://www.cuddleclones.com/.