Newegg offers ESET Smart Security 2015 3-User for Windows for $79.99. Coupon code "EMCETFK34" drops it to $19.99. With $2.99 for shipping, that's the lowest total price we could find by $14, although we saw it for $3 less last May. It features a personal firewall and anti-theft laptop tracking technology. A free upgrade to the 2016 version is included.