Fly the Team Iceshanty Flag! Iceshanty Proshop
Ask around at bait shops or other fisherman.
I use a stone and mark the area of the blade to be sharpened with a magic marker. Only sharpen until the marker is gone. Then check the back side and touch it up once or twice to get any burrs off. Never change the angle of the cutting blade. Always go from inside to out.
Ten bucks!