Meritline offers the InfiniApps Spiritus Slyde CD Slot Mount for Smartphones, model no. 0045633-001, for $19.99. Coupon code "MLCJ11TN" drops it to $13.99. With free shipping, that's tied with last month's mention as the lowest total price we've seen. (It's a current low by $4.) It fits into your car's CD slot without preventing CD player functionality and features an adjustable magnetic grip.