Oh, If you do get into the ice, either move your airplane 180 degrees
immediately where there was no ice, this would constitute an emergency
in an airplane not capable of flight into known icing.

Or move the airplane up or down 4000' will guarantee exiting icing
conditions, however, in my experience moving 2000' feet will exit those
conditions.

I haven't had to declare an emergency due to ice, yet, however on
several occasions I've been in mountain wave with ice accumulation and
haven't been able to maintain altitude, however, ATC was kind and
issued a block altitude and I was able to drift up and down at my
minumum controllable airspeed. Yes this was in a twin airplane capable
for flight into known icing conditions.

Even with the slightest amount of ice you need a way to rid the ice off
the windscreen to see to land. We have a plane with alcohol windows
and I guess the alcohol wasn't fresh and contained water, so it just
made matters worse. Guess it's why we get paid the big bucks to fly!

Best of luck and be safe and smart.

Curtis