Prepare clear, uncomplicated plans and clear, concise orders to ensure thorough understanding.

Apply the KISS principle!

The KISS principle is a popular maxim often invoked when discussing planning and design processes as a reminder to avoid unnecessary complexity. The traditional expansion of this acronym is "Keep it Simple, Stupid".

"In critical and baffling situations, it is always best to return to first principles and simple action" - Sir Winston S. Churchill

from http://en.wikipedia.org/wiki/KISS_Principle