See, the trouble with cloning animals, vampires, and people is that there would just be more mouths to feed. Also, in the case of the cats, that would mean twice as much litter scooping. So no. Plus, I don't want to be a parent, so why would I want a mini-me (or a mini-Buffy, Spike, or Angel, either)? There are also the problems of what to feed baby vampire clones and obtaining double (or triple or whatever) doses of medicines and whatnot for, technically, the same person. Once the clone is old enough to start being useful around the house, it would have social needs and entertainment needs just like anyone else, so I doubt it would really be useful as a housekeeper bot. It might even be messy! I mean, think about it: Angel spent a hundred years living in sewers and eating rats. Spike lived in a cobweb-ridden crypt. Buffy, God love her, can't go a day without breaking down a door or a window or something. All of this seems likely to result in extra housework. Then, there are all of those anti-cloning laws and lobbies to consider. Sounds like a headache to me.
The obvious answer, then, is my wallet, but let me go to the ATM before we do this thing. I only have three dollars.