Besides turning off all the electronics in your house using a programmable thermostat can be a simple and effective way to save on electricity.
Today on Amazon their Gold Box Deal is the Lux Products TX1500E Smart Temp Programmable Thermostat  for $29.49.
It has 200 reviews with an almost 5 star rating.
I can tell you I have looked at these before in the store- $30 is a great price! And shipping is FREE!
As always this is Amazon- the price can change at any moment!