Awesome to hear, I know how being "freelance" can be (and my poor wife can attest who does all my accounting). You are especially brave taking on the remodeling during your first year of business, but its great it has all worked out. I know my wife was happen when I switched to a full time position, but was able to keep most of my freelance perks.
As for scaling a one-man shop… well… good luck! The only thing I've seen work is either raise your rates quite a bit, or bring on more help. If you figure out any more tips and success stories for scaling that, be sure to blog about it, because I sure would love to know!
Congrats again, and hopefully it will only get better and better. :)