[header] How to use a parking valet [title] Clean your car before entering the drop off zone. [step] It is appropriate and courteous to pick up any trash or garbage before dropping your car off with a valet service. As the valet workers will be driving your car, it is respectful to tidy up and ensure that their experience driving your car is not a negative one. 
Remove any trash or leftover items of food at a gas station or service station before starting your trip. [substeps] Although washing the exterior of your car is not necessary, do so if your car is extremely dirty.