My last office job, the cleaning staff would come in right as we were leaving. I dunno if it helped, but I always tried to make sure any trash in my corner was neat and they really only needed to do a quick turn over of my trash can. I don't know if that's a thing they appreciate, but I'll always do that much for them. I may not be sanitizing tables or anything, but I think making a neat and orderly pile for your cleaning staff or even a table busser is just being a decent human being.