I use Lamp (X10 LM-465C) and Appliance (RCA HC20AM and Radio Shack 61-2681B) modules to control the holiday lights in our home.
I set up 4 zones: the tree; garland over the kitchen cabinets; a Christmas village; and candle lights in 17 windows plus a string of lights around the deck and a front yard display. Four presses of the buttons on the palm pad turns all these lights on or off.
Under older versions of Windows, I was able to use the Firecracker program to set up a schedule to turn these zones on at dusk and off at bedtime, however I haven't been able to find any software to schedule these tasks under Windows 10. I have a USB to RS232 connector for the X10 CM17A computer module, but no software to drive it.