Source: Money Magazine

Do pick skylights that open. They’re better at venting than windows are. Extra cost: $200 each, or $700 for mechanized ones.

Don’t scatter skylights randomly. To prevent leaks, keep them away from where two parts of the roof meet.

Do install big fixed windows on the walls that face your best views.

Don’t neglect to add small windows that open above or below fixed glass.

Do put windows high on the wall for the best venting and light throughout the room.

Don’t forget that trickier installation hikes the cost of putting windows tight to the ceiling (by $400 each).

Do group several windows together; you’ll save on construction costs and have a less obstructed view.

Don’t separate windows with fat supports that ruin your view and run you another $200 per opening.

Do keep interior fabrics from fading by installing shades in windows facing east, west or south; built-ins are $100 and up.

Don’t use UV-inhibiting coating, especially near non-coated windows; it gives your glass a tinted or reflective look.