ThinkStraight: “If things just happen to come up at lighting time, then you know it’s the yetzer hora!”
I think you mean “it’s the Satan!” The Satan works much harder on erev Shabbos to find things for us to do and cause Chillul Shabbos and also gets very involved in Shalom Bais issues.
I once heard of a “s’gula” for Shalom Bais for Shabbos: Sharpen your knives erev Shabbos by rubbing two knife blades against each another. I thought of a “s’vara” for this “s’gula”. Anyone want to venture an opinion?