Pre-Blast Checklist
The big freeze is moving west to east, so those of you along the East Coast are next in line. Here are some things you can do to mitigate damage to your plants.
Bring indoors pots containing plants that aren't super-hardy.
Potted plants are much more susceptible to cold than those in the ground because their roots are exposed to the frigid air. Don't worry about finding them a sunny spot, as well they won't be inside that long. An unheated garage that doesn't go below freezing will be fine.
Insulate tender plants you can't bring inside with leaves, mulch, straw bales, etc.