Sponsoring a survey: How to best present information

Well, it just took 11 hours to update my administration and I'm only halfway there.

I can recommend the following to the government.

Sponsor a study on:

"How best to present information."

Where does the page number appear? In which corner ?

Where will the date be?  In which corner ?

Where does the tracking number appear?

Which font for text ?

How big should the letters be?

How to show calculations clearly ?

Where should these be?

Where will the correspondence address be placed?

Where does sender appear?

Interest percentage obligatory for banks? ;)

Distinguishing between companies/institutions by using color and logos.

Greetings,
  Skybuck.