#3: Check Out the Calculator!
As a computer nerd, I'm usually within a couple of feet from a computer. So instead of grabbing the calculator from the junk drawer or some scratch paper when I need to do some math, I pull up the Windows Calculator.
Boy was I surprised when I brought up the Calculator in Windows 7. It just might be one of the best improvements Microsoft made.
As Figure 4 shows, the Calculator sports a history feature so you can see exactly what you computed and even make edits if you find mistakes. It has a Unit Conversion tool now so you can quickly convert between many different units of measurement. Microsoft also added a unique Date Calculation feature, which is great for planning events or when working with history details.