For some reason, every time I use the "Refine Edge" option after making a selection, then hit "OK", Photoshop creates a new layer with a mask on it, instead of simple leaving the selection outline there and letting me decide what to do with it (which was the previous behavior).
I've no idea if this is new default behavior or if I triggered an option somewhere that I shouldn't have.
How do I make "Refine Edge" NOT create a new layer or anything like that?
In the Refine Edge dialog, there is a drop-down menu allowing you to do a number of things, including making a new layer with mask. Choose something else.