Well, shortly after the release date for Book 7 in the Harry Potter series was set (July 21, 2007), we quickly sprang into action to reserve our copy. Rather than use amazon.com and suffer the day or two delay for shipping, Donna decided to reserve her copy at the local Borders bookstore. The bookstore is not sure if they'll be open at midnight that evening or not, but even if they are, Donna isn't sure if she'll be among the midnight crowd to get the new book at the earliest possible moment.
I think she should go if they open at midnight. Yeah, we're not spring chickens anymore, but I think it would be fun to be part of that event. Everyone there will be so excited to get their hands on the book, I'm sure it will be a fun place to be. I went to a recent Apple store opening, which happened to coincide with when the rest of the family were in Dallas. It was fun to experience that, even with the 45-minute wait in line (I went mostly to get the free t-shirt).
Regardless of the midnight timing or not, I'm planning on being primary/sole parent that Saturday while Donna reads, and finishes, the book. I'd be very surprised if she takes more than 24 hours to complete it.
By coincidence, I ran into an online analysis of who is represented by the "R.A.B." who left the note at the end of Book 6. I'm sure that analysis is correct. If you're interested, look in Wikipedia for that entry, but be warned - it may spoil some of the book 7 surprises.