The way we do it is we cut and clean the lawn off each cut as the leaves fall. Takes maybe a couple minutes extra on each lawn each week. The city's here have leaf pickup 3 times through each neighborhood in the fall so everybody piles them along the curb. I use the mower to do the entire lawn and just work them to the street mowing in one direction. Leaves the lawn absolutely spotless and freshly cut. We will tack on an extra $40 to $50 charge at the end of novembers bill for doing that. The very last cut of the season we blow the beds out into the lawn then do the final cut and lawn cleanup and charge accordingly for that. We very rarely ever do a "major cleanup" and we never haul leaves away. There is either curb pickup available or woods to haul them back into at all of our lawns.
2013 Gravely 460Z 29EFI
2011 Gravely 36GR
2008 Gravely 160Z
2004 Gravely 34Z
1998 Lazer Z HP 48 (old faithful)