Hi Group, With just putting the "L" to bed for the winter (even though it is in a heated building) one important thing to do is to make sure the gas tank is full. This will keep the condensation down to a minimum. Over the years this was not done my "L" and the inside of the tank and sender show all kinds of rust. So much, that it will need to be dropped out and cleaned out and probably will need to be sealed. Another thing that is a good idea is to change the engine oil to remove any contaminates that are present. Plus, put a good quality cover on the car (after washing the car) this will keep the dust off the paint so the chances of scratching are kept down. Disconnect and remove the battery. Keep the battery somewhere warm so if and when it does go dead it will not freeze. If possible lower the windows some to allow any trapped moisture to escape from the interior as this really makes a mess of the interior chrome. Another good idea is to put plastic under the car. This will keep any condensation that comes up from the floor to collect on the underside of the car. I am sure the rest of the group has other suggestions that they have used so, lets hear some..... George