This worked for me. I had a woman who owed me for a months worth of cutting. She stopped the service because her son started to cut it. I also cut three other lawns just by her. I would see her and I would go up to her and tell her that it has been 6 weeks since I stopped & I need to get paid. She would promise to mail out the check. So after a couple of times of that, I switched to yelling out from across the street "Hey it's been two months since you promised to pay me. I have to pay my insurance next week." She yelled back I'm sorry I forgot. Went back in the house and wrote me a check.