I am remodelling my kitchen & am considering Recessed Lighting. My kitchen is aprox 12 x 19 rectangle with a bay window at one end & the Stove at the other end with 8ft ceilings. I would like some advise of where & how many lights I should install. I was thinking 4" lights. I have never done this before & I am quite confused. Your help would be greatly appreciated

I am building a closet in a downstairs hallway which is going to shut out light to the adjacent stairs going to the upper level. I am installing a hardwired light on the side of the stairway so we can see the stairs. At the top of the stairs and around a corner there is already one light which partially lights the stairs, but isn't enough light once the closet is built. The existing light is on a two way switch so we can turn the light off at the bottom of the stairs and at the top of the stairs. The problem for the new light is that we cannot wire it for a two way switch for some reason that has to do with the old wiring in my house. I can have only a switch downstairs for the new light, but not upstairs. Here is my question: is there some wireless switch device that I could stick to the wall upstairs so that I could shut the light off once I'm upstairs? Any ideas?