i bought a round not too long ago, where the bloke dropped 20,000 leaflets and with no knocking built it up to £750 per 4 weeks. the round inc shops and domestic. so i ordered 20,000 i am about thru my first 500 and have had 11 jobs, the good thing aswell is, you can price them well as they asked you. so in my opinion, leafleting really does work, after reading several posts from here, i'm going to knock a recently flyered area to see if i get an even better response.