I must confess--we did this project a few weeks ago. But it definitely qualifies for the Homestead Challenge.
Our house is surrounded by old trees that bring some pretty awesome shade. That is, except for the west side of the house. It takes in a lot of heat in the afternoons, especially in the summer. That side of the house is where the master bedroom, bathroom, and my workroom are. It was added on many years ago, and was cooled by an ancient, unreliable air conditioner that we replaced with a window unit. Even at that, it takes a lot to keep this west-facing side cool.
Fortunately, all of the trees survived, and we spaced them out on the west side of the house. They are thriving, putting out new growth everywhere. Boy, are we lucky! We hope in the years to come, they will provide great shade and keep us cooler in the summer. And as a bonus, I'll get to see some fantastic red leaves in the fall (love me some fall foliage!). It seems like a good investment, considering what they should save us in electricity eventually.