@tesssa If you are in an area that permits you to burn, they go up in fire and smoke, otherwise you bag them and they haul them away. Or if you are like me, I don't bother to rake them. They are good for the ground I say.
they look very colorful raked together in a huge pile. with the amount of leaves we have here it pays to have a leave blower attached with a bag and then they get transferred to huge brown bags for pick up.