I have many clients who have trees with low hanging branches, weeping willows, and whatnot. I am having trouble mowing around them, and when I use my rider I end up getting whacked in the face & arms and have the scars to prove it. Do I send out a memo to these clients to cut back their trees? If so, how do I do it without causing any offense to the customer? Do I offer to trim back the trees? Do I charge to do it? Any suggestions would be helpful! Thanks!