Looking through the square windows

I've been working on a few model building projects recently and if there is one thing I will do my best to avoid, it's being able to see things inside the model you shouldn't be able to. Mainly this is being able to look through a building when there should be walls in the way, but can also refer to seeing the construction of the model.

Now, you can equip a model with a fully fitted interior. That's what the guys at Pendon would do, but I don't have the luxury of that much time and to be honest, for most models, it would be overkill. Fine if you like sticking things on the layout that no-one sees, but that's not for me most of the time.

My solution is to make up little boxes for the back of the windows. Inside is painted dark grey, not black, and then stuck in place to blank out the view. There needs, in my opinion, to be a little separation between the "glass" and the blackness or this looks odd too.

The job doesn't take long, but adds immensely to the look of a model.