I see that knowone that has disagreed with me has answered my last post on here 
I don't disagree, I'm just very surprised.  But as I said before, fair play to ya. It is a good return, but I'm sure Peter jones would try to get you to canvass and get 5 times your return!    
 
The best things for me about leafleting are
1.  You don't have to deal with canvassers (it is far less hassle)
2.  You have a lot more control over what is said to your customers when they sign up
3.  You have a lot more control over prices
4.  It is a lot easier to do on a large scale than canvassing
for these reasons it suits the goals for my business much more.
a point that has been a little undersold on the extras advertised on leaflets is that you are advertising all your services to all houses leafleted.
if you are sending your new clients a letter with services on them, you are only advertising to this much smaller (albeit more targeted) group of potential customers