PS. In the next 24 hours, I will be taking my first plane flight ever and be somewhere in Chicago. Assuming I end up on the right plane and the right plane doesn't fall out of the sky into a firey ball of flame. Honestly, I'm more concerned with the former than the latter. Is that odd? I think it's odd.
PPS. PSen that are longer than the original document which is being PS'd are just tacky.
PPPS. So are PPS/PPPS/etc.