This might be a silly question but I'm having a hard time removing my circular polarizer when I have it in front of a UV filter or a step up ring. I just can't seem to get them to separate easily without getting my greasy finger prints all over the place. Does anyone have any tips or tricks? I've tried screwing them in as lightly as possible but they seem to always tighten when I adjust the polarizer. Any help would be great and it would save my hands from cramping. Thanks in advance!