Three rules of thumb (2009)

johndcook.com

2 pointsoskarth3 comments

I find rules of thumb fascinating. Would love to hear what other rules of thumb people use in their day-to-day.

Then they measured my right Thumb, and desired no more; for by a mathematical Computation, that twice round the Thumb is once around the Wrist, and so on to the Neck and Waist, and by the help of my old Shirt, which I displayed on the Ground before them for a Pattern, they fitted me exactly. -- Gulliver's travels

There are about 2000 work hours in a week. Useful when converting hourly rate to annual salary, e.g. $50/hour = $100K/year.

> There are about 2000 work hours in a week.

There are about 2000 working hours in a year (40 hrs/week * [52 weeks a year - 2 weeks of paid leave])

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