As we head into summer, my sweetest memories are of my children always playing outdoors. And their treehouse was their special summer hangout. In our backyard, we had a simple playhouse built on piers beside our pool. It's seen little use as my daughters have grown. But now it's a "happening place" again. My youngest teenage daughter decided it would make a great place for her and her friends to sleep in overnight. So my husband took it on as a project. He insulated it, put up beadboard walls and wired it for electricity. In a few years, it may not be used for sleepovers, but it will be a great studio for me to write and paint. A "grownup treehouse" is definitely in my future!