I am filing this report early on purpose, since the worst coat decisions happen during the first real cold snap of the season. Winter dressing rewards getting four or five things right and wearing them on repeat until March, rather than chasing anything new. This year that starts with a long coat that reaches at least the knee, in grey, charcoal or black with a little cream mixed in, and a cut that stays clean and a little strict rather than puffer-bulky. The EAVES Yaron Manteco Wool Coat is the strict, tailored version of that idea, while SIMKHAI's Rumi Belted Long Coat adds a belt for more shape at the waist. A long coat does something a short jacket cannot, which is make whatever is worn underneath look deliberate.

The cable knit is the sweater I trust most when the heating in my building gives up. The pattern comes from the fishermen's sweaters of the Aran Islands, off the west coast of Ireland, and it was made to be warm first. Cream is the classic, but a heathered grey cable is easier to wear with a grey coat and hides a coffee spill much better. Look for a roll neck or a crew that sits close at the collar so it layers without bunching. One good cable sweater does more than three thin ones.

Wide grey trousers are the quiet engine of a winter wardrobe. They make a knit look like an outfit instead of a weekend, and they cover the top of a boot so you can wear tall ones underneath without anyone knowing. Look for a high waist and enough length to graze the floor when you are wearing a heel. Pinstripes are having a moment, and a soft grey pinstripe is the gentlest way to try them. Plain grey flannel will last you longer.

The knee-high boot is back to being the default winter shoe, and I am relieved. It keeps your legs warm under a skirt, it tucks neatly under wide trousers, and it survives a slushy crosswalk better than anything with an open toe. Black is the obvious choice, but a dark brown pair gives a grey outfit a bit of warmth. Choose the heel height you will actually walk in, because a boot that lives in the closet does nothing for you. A block heel or a low stiletto both work, and a flat riding boot is the most practical of all.

A shearling jacket is the warmest thing you can own that still looks good in a restaurant. The aviator shape was built for pilots in unheated cockpits, which explains the big collar and the cuffs you can pull down over your hands. Real sheepskin is heavy and lasts for decades, while a good faux version is lighter and easier to care for. Underneath I keep it simple, with a grey knit, black straight jeans, a flat boot and a beanie in deep burgundy. Silver earrings are the only jewelry it needs.

Every winter I end up wearing some version of the same all-black outfit at least twice a week. It starts with a fine black turtleneck, adds a midi skirt, and finishes with a tall boot so there is no gap between hem and shoe. Leather or a good faux leather gives the skirt enough weight to hang properly and move when you walk. Long leather gloves and silver earrings are the details that make it look like a choice rather than a default. A long black coat over the top finishes it.

The small things are what keep a grey winter from looking tired. Silver is the metal I reach for when the light goes flat, because it picks up the grey instead of fighting it. Short leather gloves in chocolate brown and a brown suede bag add just enough warmth to the palette. None of these need to match each other, and they look better when they don't. Keep the earrings simple and the gloves plain.

If you take one thing away from this report, let it be the coat. A long, well-cut coat in grey or black will carry you through every other decision on this list, and it will still look right five winters from now. I would skip anything sold as a micro trend for the holidays, and I would skip a second cable sweater if you already own a good one. Buy boots you can walk in, trousers long enough to cover them and one piece of silver you like enough to wear every day. Everything else is optional, and winter is long enough to figure it out as you go.