AmazonBasics Laptop Bag, available on Amazon for $8.99-$17.05
Amazon is full of laptop bags of all prices, but the AmazonBasics Laptop Bag is one of the top-rated, and it gets the job done for as low as $8.99. It comes in 11.6-, 14-, 15.6-, and 17.3-inch models to accommodate any laptop size, as well as a smaller version for tablets. Plus, it has extra pockets for mice, cell phones, pens, and other small gadgets you might be carrying.