My local CTD always push our tiling services really hard and we are a competing local
tile shop! I reckon £50k plus a year in tiling leads from them.
I think so long as you don't take the **** on your pricing, steal their orders or rubbish their products it's in their interest to give out reliable tilers numbers....if people can't find a good tiler they don't buy tiles again! Just remember to look really after the CTD boys at Xmas!
As for business cards we just use Vista print. Cheap and easy to design yourself