Hi, I used plastic Shower Curtain Liners to hang in front of the Sliding glass doors in the kitchen of house I used to live in.. that worked for a while and really cut the cold. then when winter hit I put foam insulation panels over the doors and then the plastic which I used Duck tape to hold the plastic tight to wall...it was dark but warm... inside the kitchen and the doors were on the NW side of the house.. and anything helps here in OHio