One of my favorite memories is the summer of the treasure hunt. A number of years ago, when my wife's nephews, Chris and Matt, and our son Joshua were around seven or eight, we decided that the two families needed to take vacation at the same time so the boys could get to know each other. So we all met at the farm where my wife's parents live. It's a great place for kids.

Well, there were no video games or cable TV to keep them entertained and the boys were starting to get bored. I was out in great-grandpas' shop looking for something for some little fix it job grandma had for us when I came up with an idea. Great-grandpa's shop was a treasure trove. You never knew what you were going to find. Great-grandpa was one of those who kept everything because he might be able to use it to fix som…