Popsugar Living Christmas Cheap Gifts From Amazon 38 Cool Gifts From Amazon So Affordable, They Cost Less Than a Tank of Gas 5 December 2018 by Macy Cate Williams View On One Page Photo 35 of 38 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 35 USB Heated Mittens They can keep their fingers warm as they work on homework with these USB Heated Mittens ($4). USB Heated Mittens $4 from amazon.com Buy Now Previous Next Start Slideshow ChristmasShoppingAffordable ShoppingGifts Under $50Gifts Under $100Gift GuideGiftsHoliday