The first and best Segulah is not to drive Erev Shabbos close to the z’man. When I was walking to Shul this past Erev Yom Kippur, I told my walking partner to stay wayy away from any car driven by Jewish drivers. You could see, even without looking at the driver, any car driven by Yidden, was going verry fast, and not even slowing down at a stop sign.
