Looks like we are in for some more very cold weather in the next few weeks.
Here is a quick video from “This Old House” that gives a good primer on the subject of dealing with and prevention of frozen water pipes in out homes.
Preparing Pipes to Prevent Freezing
Also, here is a sample photo of an insulated outdoor water faucet cover. I just bought one.
Absolutely well worth the $2-$5. Home Depot, Lowes, Ace, etc. should have them.