Amazon's Kindle is on sale for $55 with three months of Kindle Unlimited

If you missed Amazon's standard e-reader when it was on sale for $50 on Black Friday, you have another shot to grab it for less. The regular Kindle is back on sale for $55, and you'll get three months of Kindle Unlimited along with it. It may be a bit more expensive than it was one week ago, but the added bonus of Kindle Unlimited sweetens the deal a bit — and you're still getting the device for $35 less than usual.