How do you disable iCloud? I don't want my info in space.

Apple menu > System Preferences > iCloud

Delete your information in iCloud then close your iCloud account as Linc indicates.

BTW, your iCloud info isn't in "space" .. it is on Apple's servers either in Cupertino or NC.

I just upgraded my wife's MacBook to 10.6.8 and she keeps getting prompted to sign in to iCloud, which she will never do. I want to disable iCloud entirely, but in System Preferences there is no icon for iCloud--only MobileMe. How can I keep the sign-in prompt from continually appearing? How do I disable iCloud if I don't have it?