Stupid question here! How do I manage to take screenshots of a house I've just built without the grid-lines? I can't seem to find any mode that doesn't have them, short of moving a family in and going in live mode. I'm probably missing something horribly obvious.

Have you tried tab-bing? (Clicking tab.) Not sure if this worked but it worked in TS2, so it's worth a shot.

In game you can scroll the camera to any house or lot in the neighbourhood. Wait a moment for the textures to load and you can take screenshots of the exterior. You can see in the windows, but any interior furnishing aren't visible. You can't drop the walls.

It's not possible. The only way is to move a family in and then use tab to take pics.