When we built our house, the contractor suggested adding hidden florescent lighting above the kitchen cabinets to cast light up towards the ceiling. I didn't think I would use this feature much, but it is my preferred lighting. We have north-facing windows, and in the summer with the trees fully leafed out, it can be very dark. I like to turn the florescents on as primary lighting instead of the can lights until I need task lighting for something like chopping vegetables. Now you can buy strips of LED lighting and do the same thing.