PL/SQL Naming and Coding Standards

For a last few weeks I've been reading PL/SQL code from various developers. My goal was searching for best practices, how to efficiently use PL/SQL for developing and bunch of other stuff. I've seen very neat and readable code and opposite to that very confusing code.

The easiest code to read was code made by developers who followed PL/SQL Naming and Coding Standards covered in this document:

http://www.williamrobertson.net/documents/plsqlcodingstandards.html

This code was very easy to read and probably to maintain. I know that I'll stuck with this coding standards cause I want for my code to be readable and easy to maintain.