About a year and a half ago my wife and I bought our first house. Before we moved in there was a lot to do: hang new curtains, paint, pull up old carpet, install new counter tops and purchase a microwave. Although we are now settled in, I have not been able to kick the habit of perusing the real estate pages of the Sunday paper. The color images of houses for sale catch my eye as I thumb through for the sports page, and before I know it I’m checking prices and comparing square footage. Our family is growing, I tell myself. More children require more space, and for just a little more money we could “trade up” and get a couple more bedrooms . . .