For those of you who have mostly residentials and don't do contracts what do you say in your letter or over the phone. I'm putting together my spring letter and trying to figure out a way to say that if they wish to cancel let me know before April. But part of me would rather talk to them in person. Should I do both? Last year I did both, but lmost half of my customers were snow removal customers this year so I know those ones are continuing w/ me. Or is it presumptuous in my letter not to say anything about canceling and that I just look forward to seeing them soon?