Christmas is a time for giving (spending money on others), receiving (others spending money on you), having all the family round (spending money on food) and having a good time (spending money on alcohol). If you haven't yet realised that the true meaning of Christmas is to spend lots and lots of money then you've obviously misunderstood the whole thing.

Indeed, spending is a tradition that can be traced back to the birth of Christ, when three Wise Men spent their entire Christmas bonuses on extravagant gifts from Selfridges for Baby Jesus. Of course nowadays the festival of spending continues well into the new year with the January Sales, many of which start on Boxing Day, allowing you to prepare for next Christmas by doing much of the spending in advance.

So that you can get on it straight away, we've compiled a list of start dates for the upcoming Post-Christmas sales, and a little about what you can expect from each retailer.

It's the most wonderful time of the year!

BooHoo | Sale ends Mon 29 Dec

Forever 21 | 50% off

ASOS | Up to 50% off

Dorothy Perkins | Up to 50% off with code NV43

IWantOneOfThose.com (IWOOT) | Seasonal reductions

FeelUnique | Up to 50% off until end of January

The Body Shop | Up to 50% off until Mon 9 Feb

Urban Outfitters | Up to 50% off until Mon 19 Jan

Nike | Up to 30% off until Wed 21 Jan

Office | Up to 50% off

Rocket Dog | Up to 70% off

Currys | Seasonal reductions

House of Fraser | Up to 50% off

John Lewis (online) | Seasonal reductions

Look Fantastic | Up to 50% off

Thorntons | Up to 60% off until Thu 15 Jan

Topman | January sale begins in evening

Topshop | Up to 50% off sale begins in evening

Selfridges | 50% off

The Fragrance Shop | Up to 70% off

Glamorous | January sale

New Look | January sale

Paperchase | January sale

The Idle Man | Up to 70% off

John Lewis (in-store) | Seasonal reductions

ASOS | Up to 70% off until Wed 11 Feb