For the kitchen, wipe down all your surfaces, place food and utensils where they belong, and make sure the sink and dishwasher are empty.
That last rule is particularly helpful when cleaning up dishes after your guests have gone.
Leave the floors for last, as you’ll likely wipe crumbs on the ground when cleaning the other areas of the room.
When it comes to the living room, a good dust, vacuum and mop should have you covered. Tidying by fluffing the pillows and folding the blankets always makes an area look cleaner.