Ordered myself a smart programmable thermostat yesterday.
It can switch from heating to cooling automatically, which is great when there's a 40-degree swing in temperatures between night and day. I'll be able to schedule it to relax its heating and cooling while I'm at work, sleeping, on vacation, etc. It'll allow me to control it from a smartphone, tablet, or PC. And it's got voice control. I can yell at it from across the house, "Hey Thermostat. Make it cooler" when I'm too lazy to operate the controls.
I found it in "like new" condition on Amazon for about half the retail price.