Out with a Bang Readathon update

I started The Sisterhood of the Traveling Pants by Ann Brashares. I'm hoping to finish all four by the new year, but at the rate I'm going I might make it through two. I also wanted to reread The Last Summer (of You and Me) but I highly doubt that will happen. I know I could at least get through all the Traveling Pants books if I just sit and read, but there are so many other things that need doing too. Maybe I'm just bad at readathons.