Strange. I cleared up some space on my Macbook to install Mavericks. My trash was empty. I had 19.3GB of free space. Installed Mavericks and it is now telling me I have 25.85GB of free space.
Its good to hear that other people have experienced this chilling good feeling.
I had only 1gig of free space left after the download of mavericks. After the install finished, I looked at my HD and saw 47 gig of free space
(You know that sudden fear you get when something feels wrong)
I was wondering what documents apple had deleted because of the install. LOL
Did all of you folks have Time Machine turned on? I noticed my Mavs install shrunk the Time Machine local backups down to almost zero. That would account for some savings.