Sometimes, the very best home improvement ideas come down to timing. And what better time for a refresh than the arrival of fall (Sept. 21, for those keeping track)? In addition to being a great season to go apple picking and admire the foliage, it's also the perfect time of year for making a number of home improvements. Here are some timely projects to tackle this fall.

1. Build a fire pit

Like the idea of being able to hang out and roast marshmallows in your backyard this winter?
According to the American Society of Landscape Architects, fire pits are among the most popular outdoor design elements.You can even build one yourself.