'one thing at a time'
It may sound very simple to do 'one thing at a time' , however it's not, at least not in complex work spaces and organizations of our time. Reason: Our mind is a wonderful object, it can focus and it can split focus at the same time. Over the period of years I have seen, that almost all the time, myself and people around me have benefited by adhering religiously to this simple principle. The advantage of not getting knocked down by noise in the environment by multi-tasking weighs huge in favour.