Types and units would be super useful. I recently lost a few days of work after realizing that a part analysis spreadsheet I was working on for evaluating low n

Types and units would be super useful. I recently lost a few days of work after realizing that a part analysis spreadsheet I was working on for evaluating low noise op-amps was producing incorrect results because I accidentally divided by 1000 instead of a million in a unit conversion somewhere. I knew the starting and ending units, but Google calculator and Wolfram alpha have made me sloppy.