Head, shoulders, knees and toes - keep those body parts warm with hand and body warmers. Keeping your extremities warm can be difficult, particularly if you are outside for long periods. These warmers last for hours and keep you warm all day.
Also. don't forget sun cream. It may not be warm, but UV rays can still be strong. Layer up with sun cream and lip balm on your face to make sure you don't get sun burnt on the slopes.