Though I am an intensive user of various features of Google, I was surprised to find that it has an inbuilt calculator that I had not discovered till today.  Normally, I open MS Excel painfully or some other application to do simple calculations.  I found that one can do these by using the calculator function in Google by using standard methods that one would in Excel.  If one has the browser open, it’s a quicker and easier way to get answers than looking for an application.