To better understand the Arduino, my next project was to wrestle with the Arduino on a breadboard. The first few attempts failed and I even let the magic smoke out of the Atmel ATMEGA 328 chip. Eventually I got it right.
With a better understanding of the Arduino circuit, I successfully completed an Arduino on Perfboard. Unfortunately, the board used for this project does not fit into an Altoids tin. There are some really nice breakout boards available, they also do not fit into an Altoids tin.
So my next Arduino project is to custom fit a perfboard Arduino into an Altoids tin.