I am not sure when I will get more days like these past several weekends. Time tends to drift by without any notice. I probably said this already, but I cannot stress it enough. Try to spend as much time with family and friends before you cannot anymore.
I think once you had attended one music festival, you get addicted and try to attend as much as you can. I love that this year Boston Calling music selections varied from indie/alternative/rap/edm. When the music genres varies like this, it is much more interesting to go and enjoy to because you get more than one selection.