"Misadventures In The (213)" by Dennis Hensley
I LOVED THAT BOOK! It was so much fun!

There are a lot of others that people have already mentioned - the Gemma Doyle (yes, it's ya) series, Water for Elephants, the Outlander series (come on, new book - although I'll be USELESS when it finally comes out).

Everybody Was So Young - Amanda Vaill
I Capture the Castle - Dodie Smith
The Lost Art of Keeping Secrets - Eva Rice
the Auntie Mame books - Patrick Dennis
the Tales of the City series - Armisted Maupin
Fingersmith - Sara Waters
Slammerkin - Emma Donoghue
White Mans Grave - Richard Dooling