On the dock bar I have:
Settings, Safari, Mail, Contacts, and Calender.
Other apps not in folders:
App Store, iTunes Store, Clock, Newsstand
I have folders dedicated to Apple, Google, and Microsft apps. All my other folders are categorical (music, video, news, etc). This takes up two homescreens.
App organisation is something I much prefer on Android where everything can be accessed from an alphabetical app list/drawer, and you specifically choose which apps get shortcuts on your homescreens.