does anyone know if any local stores stock them? from what ive found with the search is that the CORRECT bulb is "581". I'd like to get the original one

from reading, apparently people just buy "1157" or "1156" and shave off one of the prongs.

is there any place to get the original 581 without having to order from some out of country website, or should i just buy the 1157 and shave off a prong and call it a day?