I'm building a layout after a quarter century hiatus from model railroading.  Life got very busy for a while and I didn't have the time to deal with maintaining or building a layout.  Now I'm older and things have slowed down and I have a new granddaughter.  Some of my favorite memories as a child where running trains with my grandfather.  He always took the time to explain how things worked on the model railroad and taught me how to use tools.   I want to do the same for my little granddaughter.