I used to paint large paintings and some work would take days, weeks or month to complete. The idea of able to finished a painting a day it just seem impossible to me. Last month, I decided to paint some smaller works for a change and discovered it is rather relaxing and fun. I set my painting size around 8”x10” all painted in watercolor. Most of the days, I could finished at least two per day and I would go home and satisfy and happy of what I had done. I guess I am an accidental daily painter. This one is my latest a cat portrait, watercolor on paper, 8.5”x10”.
If anyone is interested you can see more of them on my face book page.
http://www.facebook.com/alfred.ng.9028
alfredngdesign 
A few months back I also started painting every day. Your work is very inspiring. Thanks for raising the bar.