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Feb 16, 2017 at 4:05 comment added RLH Yes, this is definitely a technique that was used throughout many dorm rooms in my college. In fact, even I used this technique-- tin foil and duct tape will guarantee that not a single photon will get through that window.
Feb 13, 2017 at 5:37 comment added Keith McClary I've used a "space blanket" (aluminized mylar) from a dollar store. These are probably large enough to cover your window - no need to tape together strips of foil.
Feb 11, 2017 at 6:29 comment added Jules You should, however, consider that this may make people suspect you of growing Cannibis in your room.
Feb 7, 2017 at 20:41 comment added Will When I was working nights, a night-shift veteran (20+ years) told me he had foil over most of the windows in his house. Apparently it works better than anything else.
Feb 7, 2017 at 19:40 comment added PatFromCanada I spent a summer in yellowknife canada and this was a very common sight there.
Feb 7, 2017 at 19:26 comment added Lil' Bits That is a really neat idea!
Feb 6, 2017 at 20:14 review First posts
Feb 7, 2017 at 8:32
Feb 6, 2017 at 20:11 history answered Myles CC BY-SA 3.0