From the word go, it was always my aim to get to the point where I could hire someone. I planned that much right from the start. Did you? If so, did you ever make it to that point, or did you change your plans along the way?
I started out as a sole trader, now I have freelancers working under me and a personal assistant. I didn't really plan any of that, but I'm not complaining one ounce. The business will take you wherever the business takes you, and there's not an awful lot of planning you can do in many cases.
Freelance workers would be my preferred route as there are a lot of hidden costs when it comes to employing people on the books - extra tax payments, holiday pay and sick pay to mention just 3. If you depend on one employee and they are off work for some reason you either need to do the extra work yourself, train someone else or get in a temp - at considerable cost. Working by yourself restricts your future profits but it really depends how far you want to grow your business.