For most people a saw is a saw, a serrated blade with a handle. Like a steak knife but bigger. And a power saw is a big spinning blade of immanent death, dismemberment and saw dust. Crime dramas and horror movies aside, saws are varied and useful tools ideal for many purposes and materials.
Just because summer is dying and autumn is knocking doesn't mean that you have to give up on your garden. Far from it, in fact. South Africa is blessed with a long growing season and with a little love your garden can continue to grow beautiful flowers and delicious vegetables for months still. Here