Do you already have the lights on? I normally wait until the solstice. But I really want to start getting some eggs again.I'm all about making things as easy as possible, and maybe have more birds than you do (currently 45) so this may or may not be helpful.
Barn boots! The tall Muck Boot brand, warm and comfortable, last years, and worth every dime! Gloves, yes, and either coveralls or long johns under jeans, and a warm jacket and hood or hat. Cold weather is manageable when you dress for it!
We have an all -weather hydrant next to the coop for water, and two heated bases for three gallon waterers in the coop. Also a black rubber water dish out next to the hydrant for when the birds are free ranging. And a heated dog bowl at the barn for them, and for the barn cat.
Multiple full feeders in the coop and roofed run. Bags of feed in metal garbage cans in the coop.
Deep shavings as litter, cleaned out in spring and fall, and some added as needed. Scattering some goodies around on it gets the birds to scratch in it and turn it over.
A small light that's on a timer, 4am to 8am every day.
Gathering eggs as often as possible in really cold weather, before they freeze.
Vinyl sheeting over the lower seven feet of the run walls for winter. It stays warmer than ambient in there, still with plenty of ventilation.