In my house, no plastic fly swatter is needed. My cat, Mya, is a living fly swatter. You let one pesky fly enter my house and he is history. From one window to another, the race is on. The cat jumps over furniture, etc until the pesky little creature is caught and eaten. And people say cats aren't useful. Mya is worth her weight in gold.
That fly swatter hangs in a familiar place on a nail inside an entrance door. It's just not needed. But it remains in reserve in case Mya gets too old to chase flies. Right now, she definitely earns her keep.