Laptop dew

Hello All,
I am using the Earth Centered Universe computer program on my dob as dsc's.I had been using my wife's work laptop (A dell) I just put it in a clear plastic bag to keep the dew off.
Now I am using my own laptop, (An HP) I hear they have heat issues.
I was wondering how you guys keep the dew off your PC'S
Thanks Paul

Paul
Set the laptop inside a corrugated box so one side is over the top of the laptop to create a dew shield so to speak. This allows good air flow and shields from dew.
Just a thought
Buck