I've noticed something - and other cleaners have had the same experience: Older people are more likely to respond to leaflets. Younger people are more likely to use Google. Someone told me that the older generation is more likely to "buy at the doorstep" and be comfortable with leaflet drops.
My leaflet customers are more likely to be elderly people living in modest, decent 2-bed semis. I have leafleted affluent areas full of large family homes and gotten no calls. Like, there's a particular lovely village near me that I leafleted heavily. Got more than half the village. Nobody called. But, I have gotten THREE calls from the part of town I didn't leaflet from my Google ad. So, maybe what Whoknowswhocares says was in effect: the people who got a leaflet were turned off at my seeming desperation.
But, you have to remember that there are all sorts of people and they all respond to different things. One person will Google and another will use a leaflet and another will only go by personal recommendation (I get those, too.) When you're trying to build up your business, try a bit of everything. I even carry business cards and strike up conversations with people and give them my card. I'm friendly and likeable and I don't think I'm making a bad impression but I have to say that nobody has yet hired me based on that.
I also have signs on my vehicle. My son pointed out that people are unlikely to write down my phone number as they're driving around but I said that the point is people recognizing my name. Later, they may get a leaflet or Google for a cleaner and my name could ring a bell. And, of course, the neighbours will see my car in the drives of the houses I clean.
It's a belt and braces approach.
I will probably be fully booked by summer. My husband may join me then and then we'll need to get more clients. People come and go. I don't know if I'll always need to leaflet and I may even stop paying for Google adwords from time to time, but you have to be ready to advertise at short notice and leaflets are a good way of doing that.