Glendalegood - Excellent post. Here's another trap that I have come across a few times:
APP: XYZ123, field is at 2 o'clock 15 miles.
PNF looks out the window: XYZ123, field in sight.
APP: XYZ123, cleared visual approach.
PF: Wait, what? Where is it?
Let's at least make sure I can see AN airport, and preferably THE airport before WE call it in sight.