Walmart offers the Sunbeam Warm Mist Humidifier for $9.88. Opt for in-store pickup to dodge the $5.99 shipping charge. That's $5 under last month's mention and the lowest price we've seen. (It's also half the price of what most third-party sellers charge via Amazon.) It features a medicine tray (for aromatherapy and cough and cold relief products) and two fan speeds.