I'll try to keep this brief...we live in an old town house. The room that we (me, DH and 20wo DS) sleep in has wooden shutters. When they're closed, bare stone work is exposed (you'll see why I think this is relevant!) A couple of weeks ago two young guys moved into the flat next door and since then our room periodically STINKS of cigarette smoke. I've just gone in to feed DS and the place reeks like a manky ashtray :( I can only assume it's either somehow coming through the exposed stone work (how I don't know!) or they're leaning out the window to smoke and it's blowing back in. I'm really worried that this is an unhealthy environment to be sleeping in but don't know how to fix it - his own room is up another flight of stairs and I feel he's too little to sleep that far away from us :( Help! (thanks for reading)