Can someone please tell me exactly how many passwords the whole Apple system, including iCloud, has. Having bad time keeping track of them. Almost seems like they change by by themselves. What I am looking for is ONE PASSWORD FOR EVERYTHING APPLE, including apps, store, forums, etc., etc. When I try to change things to one password, get all kinds of error messages. Also, would like to get ONE APPLE ID for everything. Thanks for help. John H.