On a serious note..... I once read a business book that told the secret to success.
It said ........'work out the cost of success....... Then pay that price'
I can tell you  the leaflet secret to successful domestic powerwashing, but not many are willing to pay the price.
I could move anywhere in the country do what I do now and within 2 weeks I would be earning good money.  Leaflets are a fast way of getting work, as long as they are going through letterboxes and not sat boxed up in your hallway 

Dmckeller...... (You posted as I was typing).  How would they work harder? They walk the street delivering leaflets, would they walk faster?  I pay them £15. if I was handing out bonuses for every job they would maybe get £30  but I would get a better return by just employing more lads and paying them the extra£15 I was giving the other lads in bonuses .