How many calendars can you share with the same iCloud person?

Question

OK Apple people, here is my concern:
I have several calendars in my iCal app.  I can share one (home) with my wife but for some reason, I am not able to add her to another calendar that I wish for her to  view/edit (work).  She does have an iCloud account.  The documentation on the Apple web site for iCloud states:  " You can share a calendar both publicly and privately with other people. Sharing gives you flexibility in managing calendars. For example, you could create a calendar for your child’s sports team and share it privately with just the coaches so they can edit it. You could also share it publicly with all the parents so they can view (but not change) it whenever they want."
Is there a limit to just how many calendars in the application that one one can send as suggested by the "a"?
Thanks in advance for your responses.
RAP

Answer 1

All my family devices are tied to one Apple ID.  We did that b/c we would consolidate our purchases by syncing via 1 Mac in the house.  So any device could purchase an app/music/whatever, then we would plug it into the main Mac and transfer the purchase to that and then plug in other devices and add to them.  Pain the rear!  I think my example of tedious process above is one reason for iCloud.  So, now with iCloud we should be able to purchase from any device and the other devices would have access without wires.   I thought the only way to tie them all together is if they are all under the same AppleID.  That is how iCloud knows they are related, right?  Makes sense to me.   However, on each device, we use their own @me/@mac email account to setup iCloud b/c each email is tied to that family member but under the master Apple ID for our family.  Each email account has their own contacts, emails, etc.  I thought that was the way to setup.  Shouldn’t this work?  Kind of separate but yet tied together via the 1 Apple ID.  Thoughts?