Walmart offers the Keurig K15 Single-Serve Coffee Maker in Black for $49 with free shipping. That's $10 under our May mention and the lowest price we could find by $4. It brews in under two minutes and features 6-, 8-, and 10-oz. settings, a removable drip tray, and auto shut-off.
Note: Orders placed by midnight ET are expected to arrive in time for Christmas.
Beware these cash-guzzling missteps when you stop at any gas station.