The easiest way to get to all the nooks and crannies in your car is by vacuuming. Start with the passenger side and work clockwise around your car to end the process on the driver’s side. I am pretty sure you will be surprised by how messy the seats and underneath them can become. Don’t forget about the floor mats! If they are made of plastic, after vacuuming, use the hose to give them a proper cleaning and let them air dry while you’re rearranging things in your car.