I try every now and then to write something that is useful. These I call tools. I hope you find these tools as useful as I thought they were when I wrote them.

• Area and Perimeter Calculator 7/1/2026

  Calculates the area and perimeter of various geometric shapes.

• Unit Converter 7/28/2026

  Converts between various units of measurement.

• School and Facility Closer 7/3/2026

  Creates a list of schools and facilities that are closed due to weather issues.

• Flutter Postage Stamp Recognition App 7/4/2026

  This is a Flutter app that uses the camera to recognize postage stamps. It uses a machine learning model to recognize the stamps. It is still in development, but it is working well. I will be adding more stamps to the model as I find them.

• Tip Calculator 6/30/2026

  Calculates the tip for any bill amount and percentage.