Fingerless Gloves with a hand warmer on the top side of your hand but inside the glove yet. This helps the blood in the top of your hand warm up and will help keep the fingers warm. I've fished many of days with the temp never rose above 10 degrees and this has worked well for me. Another trick is to take 2 aspirin about an hour before hitting the water. This will thin your blood and also help stay warm.