Buying the woman in your life lingerie for Christmas is as ripe with potential as it is fraught with risk.
For the purpose of this article, let's assume you've either been asked to buy her underwear, or you're certain it's actually something she wants.
But with so many options to choose from, how do you know what size or style to invest in?
We've put together this handy guide to make sure you get it right this Christmas.
Know her size
Your best bet is to take a look in her delicates drawer - ideally without getting caught - to give you an idea of the styles, colours and size that she takes.
While knowing what size she is in bottoms is fairly simple (eg 12), bras require a bit more investigation. You'll notice the labels on many styles come with two separate measurements.
In this case, take note of the back band - indicated by a number - and cup size, indicated by a letter, eg 38C.
To make things even more confusing, a bra is never just a bra: they come in an array of styles.
Again, having a snoop at what she already owns will give you some indication of the shape, colour and patterns that she prefers because, believe it or not, not all women like fancy pants.
Non-lingerie, lingerie options
Nightwear is a great alternative and caters to all tastes. If she likes luxurious fabrics and slinky styles then opt for a silk chemise, dressing gown or girlish babydoll instead.
Or, if she's the kind of woman that changes into her PJs as soon as she gets home, a posh matching set or cosy dressing gown is sure to put a smile on her face.