So, I discovered something yesterday/today that I wanted to share to help others. I just upgraded to the new iPhoto program and set up Photo Stream on my iPhone. I figured I could then import some of my photos from iPhoto to the Photo Stream in order to have them safely backed up in iCloud (because photos in iCloud don't count against your iCloud storage). I assumed that these photos would then be stored in the cloud, rather than on my iPhone. What I discovered, however, was that some small portion of the photo was actually still stored on my phone, because suddenly the Photo storage on my phone increased exponentially and I found myself lacking storage space on the phone. Yikes! I had to fix that right away. So, I ended up going in to iCloud.com and resetting the Photo Stream, along with turning off Photo Stream on my phone. This deleted all the photos in my Photo Stream quickly. Then, I started fresh and just imported a handful of photos so my phone would not be clogged down with all sorts of photos that did not need to be stored there. So, my advice, when using Photo Stream, just be careful not to import copious amounts of pictures and try to use it as a back up service (as I did) because the pictures are still somehow stored on your phone and you may find your storage capacity quickly depleting.