Again it is such a bookish question answer of which maximum people just make & modulate their answers as per the requirement & again I am not that kind person & difficult to count single from many of my strengths but one thing I would like to share that I don't keep bookish answers in my mind, keep my mind free to understand the issues better with no prejudices & I do use Google to search for the solutions & do it extensively to read as many suggestions/ideas as possible, to decide on the best solution for that scenario.