I would appreciate some guidance on the appropriate way to use the Contacts app in 10.8 under my specific circumstances. Up until today, I have my Mac Pro at home with a single list of contacts. Some are genuine personal contacts - people with phone numbers and birthdays and so on. I have also accumulated other contacts that might just be the physical address of a business I have used in the past or perhaps the user name and password that I registered for an eShop to save me having to remember it. While I do have an iPad2, it is the wifi model and almost never leaves the house so I have told it not to share my Contacts over iCloud. Up until today, I have been happy with my jumbled Contacts list residing solely on the Mac Pro. I have just bought an iPhone on an unlimited calls plan and will obviously be building up a list of contact numbers for people I want to call and it would make sense to have a shared group of Contacts in the Cloud. I want to know if there is a good way of either segregating the "non-personal" contacts of the shops and so on into their own group or of somehow marking them as "Do Not Share on Cloud". I am more than happy to redo the list of Contacts to segregate them as it is not a huge list. It is basically about time I learned how to use the damned thing properly so that I have a shared list of contacts that I can use and extend on both my iPhone and my Mac Pro but that does not expose my shopping passwords on the phone. Does this make sense?