First off, I want to make it clear, while this question may come across as "gift grabby" I am being nothing of the sort.  I am asking this here as there is NO way to get any information from guests, etc.
Our wedding is in Ohio and we live in California.  We have mentioned on our website about our home, and about our travel plans around the wedding, when we will arrive and leave, etc.  We have not, obviously, put anything on it about gifts, our preferences, or asked guests to please ship them.  Merely out the registry shipping address as our CA home.  We have also not put a lot of things on the registry, so the things we receive will be things we actually really want.
My issue, and I am hoping someone here can give me some ideas:
1. How many gifts did you receive at the actual wedding that were wrapped presents and not a card?  A percentage would help me.
2. Did most people, who gave a gift, either give cards or have them shipped to the home address on the registry?
3. Has anyone dealt with this and how did you handle it?
I have no idea who will bring a gift.  Possibly everyone on the guest list and possibly no one.  We are inviting 172 people, which is roughly 80 invitations. I would like to keep any gifts that are given to us, as they will have sentimental value.  The solution of "just return them in Ohio and rebuy what you want in CA has been suggested, but I am not all that crazy about the option.  However, shipping costs to UPS things could also be an issue.
We will, unfortunately, have limited time after the wedding to make arrangements to get gifts home and I would like to avoid having my SIL (the reception is at her home) have to deal with them because we did not have time after the wedding.
My fiance, and I assure you he was joking, said we could just put "Are you bringing a gift"  "yes/no" on the response cards.  It was funny as I have been trying to do things as correctly as possible and apparently I made quite a face before I realized he was kidding.  LOL
Thanks in advance for any suggestions.