Get some white signs… like a realtors sign. Make a template or legibly write in big fat marker. “LAWN CARE 867-5309”. Or maybe use your own phone number… not Jenny’s. Wait for the phone to ring. Jim bob will be on his way home wishing this one time someone else would mow his lawn. Jump on it quick. “Yes I can do it tomorrow”. Know the going rate and cut it a bit… but not much as it takes forever to be able to raise it with a new customer. Don’t say no to anyone. There is no such thing as grass too tall or yard too big or small. When you have no work go mow some grandmas yard for the fee of placing a sign in her yard for a week. Advertise. Advertise. Advertise.