Yes Yes and Yes again, they do work. Im personally thinking of dropping all other advertising and just soley doing leaflets.
At the moment i also advertise on the web, witch gets me a lot of work, but the jobs come from all over the show and are often 30 miles apart, this means you spend half the day on the road driving, and when your driving your not earning.
I also advertise in the y/p and all you get from that is price shoppers, and i also find once someones got to the stage that there actually looking in the y/p for a cc they really need one and there carpets are filthy, meaning harder work.
With leaflets your work is concentrated in a small area that you want to work in, the customer dosent usually have another number in front of them to get another quote so you win more jobs, and its usually a spur of the moment thing for them so i find the carpets are less dirty.