I agree 100%That's why I do all my cleanups hourly. There's a big difference time wise between getting 90% of the leaves out of the ground cover and 100% or here in the norhteast, getting every last acorn. If someone wants it done more detailed, no problem, but it's gonna cost.
In the Terms of Lawn Service my customer signs it states: "About 90% of the leaves from a yard can be removed from a yard and beds. Leaves embedded in shrubs, vines, underneath tight ground hugging plants or shrubs cannot be removed 100% with a rake and blower, some leaves will remain."
Never had a customer who had a problem with those terms.