My day job is essentially commercial art and animation. Anything illustrated, photo-retouched and so on for advertising agencies and companies.
Here's a quick glance over a lot of the fastest work I am called upon to do-- Commercial Storyboards and comps. These are various jobs from over the past 15 years. I usually have an average of about 2 days to do a batch of these (anywhere from 6 to 50 frames).