Dpg2383

I just got the AVIC-Z110BT and I am very very pleased with this product! I was just wondering if anyone has any maintenance or care tips on keeping your AVIC-Z110BT clean. As with all touch screens; with regular use you can see finger prints when the unit is off. Does anyone know any safe ways of cleaning the screen without damaging it with harmful chemicals or rough fabrics? Thanks for your time and input in advance!