Nothing can add more to the cheerfulness of the day then letting in the light. We are all affected by light — it has a tendency to raise our spirits and make the whole day seem full of possibilities. Many people are affected by the lack of sunlight and it can cause a depression and sense of malaise. (SAD, Season Affective Disorder)
Often I will go into homes and everything is so dark and dreary. Heavy drapes that are always drawn are just not conducive to productivity and over all well-being. Even if you have privacy issues there are alternatives to all the darkness during daylight hours.
If you have the two inch blinds or shutters, raise them all the way up as seen above or just rotate the slats to an angle that people can't see in, but you can see out and still get the light. Put something light and airy over the windows and have them be something you can pull back during the day to let the light filter in to your space. You can dress a window without covering it.
Rotate on an angle tilting them up rather than down. That way you can see out! When closing them use this same angle to close. Angling them up keeps your room warmer.
In our house with this southern exposure we need lots of light in our family room. Originally we had a window about a third of this size and adding in this window made all the difference in bringing the outside in and expanding our world to include the light and foliage of the back yard. We love looking out and watching the deer graze on the ivy!
When it is a beautiful day out, enjoying the warmth and healthful benefits of the sunlight is wonderful. When the weather keep us inside at least maximizing the light coming in through the windows helps a lot!

Great post! I love light and I'm right with you on this one!
Grandmother of TEN Wow! You are so lucky. I dream of being a grandmother of ten one day, but there is little chance…
Tim
Wow! Tim, I am flattered to have a comment from you I have been reading your blog for weeks and loving it! Thanks! Let me know if you do become a grandmother, OK? Maybe we could do a blog post together like you and The Nester!