Sending emails on public holidays can be helpful or ignored depending on how it's done. People usually get fewer work messages on holidays, so your email might stand out more. But if it feels like a normal sales pitch, many will delete it without reading. It's better to send a short and cheerful message that fits the mood of the holiday, such as a thank-you note or a small discount gift. Timing also matters; sending too early or too late can make it less effective. Testing it once or twice can help you see if people respond well or not. What do you think is the best kind of email to send during holidays to keep it friendly and not too promotional?