The spinnaker (conventional or asymmetric) is stowed in either a bag or a chute. The chute option is the easiest to control as the spinnaker can be retrieved into the boat by pulling on the downhaul (retrieval) line and storing the spinnaker in the chute sock.
Tie the spinnaker sheets together to stop ends tangling and allow better control when gybing. Tape the loose ends. On asymmetric spinnakers, make sure the attachment to the sail is as small as possible so it can be pulled around the front of the jib. Special knots have been designed.