I can only take a one week vacation because I'm a teacher and that is all I am allowed to take for my own wedding. We don't have the money to take another vacation a few months later, so the one week of our wedding will also be our honeymoon. I'm pretty sure people would be nice enough to leave us alone if we asked them too, but I know his daughter wouldn't like that very much. Plus, my FI is the party type so I'll know he'll want to be out having drinks with friends and dancing at the disco most nights. All I'm asking him (and everyone else) is to give us the morning/afternoon the day after the wedding all to ourselves.
Also, my FI's parents have a timeshare and offered us to use it at as our wedding gift. But I kinda feel like it's a poisoned gift : we'd still have to pay for the airfare, food, rental car, and activities at the place we decided to go. I'm pretty sure this would become more expensive than just booking an AI last minute during low season...