RefurBess offers the refurbished 3.8-lb. Lenovo ThinkPad T450 Intel Core i5 2.3GHz 14" Laptop for $608. Coupon code "LT18" cuts that to $497. (The coupon may apply automatically.) With free shipping, that's $1,095 off the original list and the lowest price we could find. It features an Intel Core i5-5300U 2.3GHz Broadwell dual-core processor, 14" 1366x768 LCD, 8GB RAM, 256GB SSD, and Windows 10 Pro 64-bit. Deal ends May 31.

Note: A 3-month warranty is included, but it's unclear who backs it.