Here are some of my daily drawings. My book now needs a clip to hold it open or closed! I like that.
1.8.12 Here is a birdie...
1.9.12 And some bunnies.
1.11.12 And a tree full of doodles...
I make the drawings, purely for my own enjoyment and desire to be a better artist. But, I save all my work digitally, so that I can use them in my work making logos, illustrations, cards and posters. Sometimes, a sketch has elements that work really well and other times the sketch is purely a learning experience. Even though my sketches aren't balanced and fill the page for frame-able art, I find that I draw the sketches "as they call to me" and use the sketches as I need. So, the empty space around the images are useful for text, background textures or other images.
I have learned to see the sketches, NOT as finished projects, but as steps in making a finished project. This has been a new way of thinking for me.
In the past, I got discouraged if the whole picture didn't look finished or polished. I would throw out the image in disgust. But, I realized that saving the image and building upon it or around it was very rewarding and effective.