I had a very large area of various plantings in the middle of the front yard that kept expanding until it was way out of control. Late last summer (maybe mid-August), I pulled out about 75% of it, leaving only a few small ornamental trees and some grasses. The rest I smoothed back down to the level of the yard, then seeded and covered with hay. Before snow fell it had filled back in nicely and was once again part of the yard.
It helps that it was in a sunny spot and my kids are old enough to know to stay off of areas like that, especially with the visual reminder of the hay.