wow thanks for the kind compliments and also for the bug reports!! :D i've updated the game with some fixes that should hopefully help.
now if you're missing a certain signature by the time you arrive on the beach, cody will say something that'll make it obvious to check your backpack, and the yearbook is only closeable if you click on the last blank photos, but i realized it's not obvious at all, so i made the blank photos look more like buttons!
hopefully those fixes help, thanks again for the comment! :)