This is probably simple, but I can't wrap my head around it. I upgraded to iCloud Photo Library because the reviews were pretty ok. Now I can't figure out album behaviour. Say I create an album by selecting photos in the "All Photos" section, and then delete a photo in that album. Does that only delete the photo in the album, not from my main iCloud storage? In other words, if I don't want my iCloud storage to fill up, I have to go through photos in the "All Photos" section before making the album - the two aren't linked? This is going to take a lot more discipline to not fill up the storage, isn't it? (Before Photo Stream would offload to my Mac once a month).