How do I write Black Friday subject lines?

As an e-commerce marketer preparing for Black Friday, I'm struggling to craft email subject lines that cut through the noise and actually drive opens and conversions. With hundreds of promotional emails flooding customers' inboxes during this critical sales period, I need strategies to make my subject lines stand out, create urgency, and compel recipients to click. I want to understand the psychology behind effective Black Friday email subject lines and learn techniques that can significantly improve my open rates and ultimately, sales performance.