Why not go down to the driving range every time you normally play golf. Hit about 50 - 100 balls n work on particular shots and aiming a markers. Be careful not to overdoe it in 1 session as your muscles become tired and your shots get worse leading to you probably trying to change parts of your swing that don't need changed.

I can tell you from experience that not playing much golf over winter can be hazardous to your golf. If you keep playing over winter it will take less time to get your game back once the season starts back up!