Shared Google calendar for family events. Shared Google docs for to-do lists, address books, family finances, etc. (Some Dropbox, too.) LastPass for shared pass

Shared Google calendar for family events. Shared Google docs for to-do lists, address books, family finances, etc. (Some Dropbox, too.) LastPass for shared password management. Mint for finance tracking (but not budgeting). Apple shared photo album for sharing kid photos with extended family.