If you asked my Chairman ‘What days does Lynn work?’ I hope he would struggle to answer. Not because he is ignorant of my working arrangement, but because it is almost irrelevant to him. Outputs are the measure of success, not the time I spend at my desk. What my clients say about me, the quality of my work are all better evaluators than counting days or hours in the office.

 http://www.telegraph.co.uk/women/womens-business/11660046/Flexible-working-I-hope-my-boss-doesnt-know-when-or-where-I-work.html