Here's another "hot" strategy to increase the amount that each customer spends in your lawn business.
Create a coupon book. Put whatever amount of coupons you like within it each offering a deal or discount tied to different lawn care services you offer.
March 1-7 - Two Chemical Applications For The Price Of One
April 6-15 - Free Fertilizer With a Lawn Cut
July 10-19 - 50% Off Aeration
August 3-9 - FREE Movie Ticket - First 50 Purchasers With This Coupon