As some of you know, our formal wedding is two weeks away.

We're excited and working out the final details now.
There will be less than 100 people (probably 75-80 including children). I have so far opted to *not* assign seating because, really, there aren't a whole lot of people and I assume people can seat themselves where they please.

We're pretty casual about that sort of thing and so are most of our family members.
My florist, who is a family friend, had mentioned to me that some people may be confused by that/not know where to sit if there are no name tags at any of the tables. I was thinking I might prepare a sign that we could put somewhere on or near the guestbook table that more or less says, "Please feel free to seat yourselves!" but, you know, that sounds nicer.
Can anyone wordsmith that into something more formal for me? So far the best I have come up with is, "Please feel free to choose your own seats!" but I don't know if it would come across the right way.