A good Rule of Thumb

I like the newest blog post from Joel Kallman and especially his rule of thumb:

"My rule of thumb - when you're editing code in a text area/code editor in the Application Builder of APEX and you see the scroll bar, it's time to consider putting it into a PL/SQL package."

I would go further and say that even the smallest application you create should have at least one package for all the PL/SQL code you write.