Thats it, as johnny said, door knocking is the best way, i found. Alot slower, but people like to see someone instead of a leaflet pushed thru from anybody.
I like the embroidered tops, that will look nice. I never did referral offer, but its a good idea, i thought of it many times but never needed to. I was going to do for every new regular customer referred they got that amount knocked off their bill, so if they were a £10 house and got you a new £8 house, they would get that much off their clean. Its just an incentive for them to get you more work too....... Fortunately we never needed it, and once you are there, regularly doing a good job, if your customers are like our, they will recommend you anyway.
Cheers!
andy