I find most of my work has come from referals. Trust me, thats the best advertising there is. I also offer - and read this carefully "10% discount for each useable referal". That means that if you get 10 customers off 1 client, you do theirs for free-its free advertising, and the customers actually get on the phone, to save themselves a couple of quid. Thats much cheaper than posting in the paper or yellow pages. It works!!