I never make houses either, but I love furnishing them. I do a fairly good job at it too, thanks to all the custom downloads I have. I just end up downloading a very pretty house and then furnish it if necessary.
If you like, you can go to sites like Mod The Sims 2 (
http://modthesims2.com/) for some nice, free downloads! I use to frequent there all the time and got a nice bucketload of downloads. It's worth it! The houses there are really pretty too, as so are the sims! Just thought I recommend a site for you to check out.
XD I never had my sims mate, even if they wanted to! I would have them marry but they can't have kids. I guess I've grown too attached to my sims that I cannot bear to have them pregnate each other. So they just stay young and married forever. I think it's time for them to start mating already. lol.