I was tired of errant balls flying out into my golf course's parking lot, so I got some golf netting installed. Even though a lot of people that play on my course are good, it doesn't change the fact that sometimes balls can go flying into areas where they shouldn't be. With the netting, if something happens with the wind or with a bad shot, vehicles are protected. Not to mention, there is less litter in the area because the wind pushes it towards where the netting is so I don't have to deal with anything but cleaning up around the perimiter of it.
