Start calling movers and get quotes.
Buy a huge stack of paper plates and cups, and boxes of plastic cutlery.
Pack all your dishes and cutlery, in small boxes.
Keep insulated mugs for hot drinks.
Keep baby stuff.
Pack all your baking gear and kitchen appliances used for baking.
Pack all spare bedding and all summer and light clothes, and summer footwear. Pack all evening wear, 'best' coat, anything else you rarely wear.
Pack books, music, art, knick knacks, photos, candles, everything that is decorative.
Pack garden tools, BBQ, any garden furniture or decor you're taking with you.
Pack your Christmas decorations.
As you pack, decide what you'll get rid of.
Pack your jewellery and important papers in a very clearly marked box.
Pack throw blankets, cushions, soft items, and most cuddly toys. Pack all but one or two towels, one bath mat
As the moving day approaches, pack all but necessary changes of clothes for work and whatever you need for home/ packing/ sleeping. You can survive in limited clothing for the last week.
Keep a special box for baby's favourite toys.
Last things to go are large furniture items, beds, any white goods you're bringing with you, lamps, toaster, kettle, teapot, coffee machine, TV, laptops, things like your loo roll, kitchen towels, broom, mop, cleaning supplies, house plants, etc.
Mark your boxes with what's in them and what room in your new place you want them put.
Hire movers.