You do such a great job of always making sure my yard looks the best. I know I owe you money for your services, but I had a really hard time of saying no to pampering myself at the mall this week. So I don't really have the money to pay you. Perhaps! We can work out a little deal, you know I give you a service for you giving me your service in my yard. I promise this is going to feel so good you won't even remember that I owe you money.