How you spend your minutes is how your life will progress.
Successful people spend their time working toward successful aims, whatever that means to the individual. Others waste time, or are engaged in activities which aren't goal achieving.
I remind myself of this when I feel the urge to do something which isn't geared toward my definite major purpose.
Remember each minute - or moment - is precious. Shut the computer off and meditate on this idea for 10 minutes. It's a helpful practice in promoting effectiveness.