The magic rule of seven (and the banality of alphabetical order)

If you approve or create online forms or deal with consumer interactions, I hope you'll think about the following:

1. If you have more than seven items in a pull down list, you have failed.

Human beings have no trouble keeping seven ideas in their head (hence the seven digit phone number). So, if asked you, "what's your favorite kind of music among: polka, reggae, ska, jazz and country" you can probably juggle those ideas in your head all at once. But if I asked you to pick among 25 movies in ...