hi
winter is a really good time to work on your short game as you can use a wedge and the soft practice balls in the house when its raining or snowing, if you have a garage then thats a good place to chip balls out into the drive into a basket.
getting a few lessons on the short game takes a few shots of your handicap and i took a 1/2 hour lesson on sand play which was a really big help to me and i fell i can always get out the sand now.
cheers
bill