I'm not 100% sure what would be included on spring clean up. For my own lawn I bag the first few mowings in spring preferably with a hi vac mower, rake up lodge pole pine cones out of the grass. Trimming and basic tidying up around planet beds, planter etc. Possibly lawn dethatching? What do your customers expect to be done? Seem to me Spring clean-up would be a check list based custom service. Roughly how are these priced compared to mowing alone?