this is one area i try to cut corners on............
I hammer into the guys heads keep the area clean, cut off a pallet strap put it in the trash bag. cut a paver, scrap into the wheel barrow. lunch scrap better be in the bag too.
I will even sometimes have a guy with a shovel and broom cleaning the loader tracks up immediately, after i pass between trips so they don't get so caked and nasty, one swipe and its done.
i posted a picture of some formed concrete steps we did recently, that job drove me up the wall, roofers were dropping plastic and shingle scraps everywhere on top of us. (one of the reasons i show trash in the form photos..... for the sake of my added charges to the general contractor)