Best places & times of year to buy large appliances and furniture?

Hello! We're going to be completely furnishing a new house in the coming months - Because there's some upgrading/renovating to do, we don't expect to actually live there until December or January. This buys us some time to shop around for our white goods and furniture.

I was wondering if anyone who has done this recently has any advice on the best stores or times of year/sales to watch out for? (Like Black Friday)

Our biggest focus is getting good quality white goods and kitchen appliances. We'll inevitably be dropping a lot of money at once so would love to find any savings that we can.

Also need materials like tiles, flooring, new doors and your typical starter furniture (dining table, sofa etc). Open to buying some items used/vintage.

Thanks in advance.