Pretty damned simple. if on the ground their is any icing, deice. if not sure of a clean wing do it again or cancel the flight. In the Air if you encounter ice, first power up, go up, you can always go down, keep min ice speed, use your boots. If worse comes to worse, turnaround get the hell out. If still ice on airframe use ref+10-15 or whatever the POH says. Tons of time in icing out here, Only 3 times that I prayed. 1. PA 31 in unforecast 2. BA31 in forecast light 3. B1900 in worse than forecast. That is despite my best efforts after #1