Microsoft Store offers the 2.7-lb. Asus Zenbook Signature Edition Intel Broadwell Core M 800MHz 13.3" 1080p Laptop in Obsidian Stone, model no. UX305FA-USM1, for $599 with free shipping. That's tied with our mention from last month as the lowest total price we've seen. (It's a current best by $71.) Features include an Intel Broadwell Core M-5Y10 800MHz dual-core processor, 13.3" 1920x1080 (1080p) LED-backlit LCD, 8GB RAM, 256GB SSD, 802.11ac wireless, Bluetooth 4.0, 3-cell battery, and Windows 10 64-bit.

Note: This is a Microsoft Signature Edition version and features a clean operating system without any third-party trialware. Click here to learn more.