The Flour Sack Animation

I guess every animation artist starts with the flour sack sequence. I just made mine a few days ago. I like it very much!
The story is a flour sack jumps up, and images itself having wings, but then "pfff" the wings disappear and it drops. Then it faints (no death! it is supposed to be G rated!)

Here's the clip.

How I made this animation:

First of all, draw thumbnails of actions of the flour sack. In this case, we need the flour sack squished and stretched to show the movement of jumping. We also need the actions where it stops midair. 

Then draw the thumbnails in the right position on a separate paper. We can add more actions here. This will be the basis of further drawings.

Draw the actions one by one on different pages. Add more pages to make the movement smoother! (Of course you can capture first, and then decide if you need more)

(optional) draw a background for the animation. The background can be a separate animation or static frame.

Final Step: capture the animation using a capture station, and export the movie!