Say cheese: This is what is known as a fashion plate
Keeping your hat at an elegant angle is hard enough while juggling a handbag and glass of champagne.
Add a giant blue stilton and all bets are off.
The lady wearing the big cheese wasn't the only one finding it hard to hang on to her hat yesterday.
With a 34mph breeze, Ladies Day at Royal Ascot was a decidedly blustery affair - but thanks to thousands of firmly fastened pins most glamorous racegoers managed to keep on top of things.
Except Dame Helen Mirren, that is.
The 62-year-old actress found herself with a brimful of trouble as she presented the Ribblesdale Cup.
But she managed to regain her composure - and her wide brimmed black hat - to meet the Queen for the first time.
Dame Helen, whose portrayal of Elizabeth II in The Queen won her an Oscar, spent more than an hour taking tea with Her Majesty.
There had been widespread speculation (and scores of bets) that the Queen would wear a fascinator this year.
Going going gone: Helen Mirren lets her guard down as her delicate black hat is no match for the breeze
Colourful creations: This racegoer looks as fresh as a daisy while the lady on the right makes an impact with her purple dress and large hat
The wind caused trouble for this race goer
Instead she opted for a pale blue hat.
The hates were just a small part of the fashion on show at Ascot yesterday.
One woman was spotted holding what appeared to be a flower pot of daisies tight to her head.
Another passed by with a fully furnished doll's house bathroom perched atop a huge spiral of cornflower blue. Yet more peer out from beneath giant yellow butterflies and tropical feathers.
Welcome to the wild and wonderful world of Ladies Day, where fashion rules are flouted and convention is a dirty word.
This year's crop of racegoers have welcomed the new Royal Enclosure etiquette rules - no small feathered fascinators (although reasonable-sized ones are permissible) - turning out for today's race meet in hats bigger, better and bolder than ever.
Here's our pick of the headgear turning heads at this year's Ladies Day.
Mad hatters: (l-r) A blue confection is topped by a miniature bathroom; a vivid yellow butterfly gives shade
Top hats: bigger is obviously better for these daring Ladies' Day attendees
Feathers were the order of the day for these two ladies
Cilla Black was one of the first of the crop of celebrities to arrive and - sorry Cilla - looked like she got dressed in a bit of a hurry. She (perhaps ill-advisedly) contrasted a pistachio green ruffled skirt suit with scarlet handbag and black disc hat set off with bright red bloom.
Bruce Forsyth - dapper in morning suit and top hat - was accompanied by his Miss World wife, Wilnelia Merced, in head-to-toe primrose.
The princesses Eugenie and Beatrice had managed to get their hands on yet another brand new Phillip Treacy hat each which, at more than £500 a time, means their Royal Ascot fashion tab - let's not forget to add an Alexander McQueen suit or two to the total - is certainly adding up.
Blossoming: Cilla's vivid red hat was the best part of her outfit; Bruce Forsyth and wife Wilnelia look dapper
By royal order: Princesses Beatrice sports yet another architectural Phillip Treacy creation, while newly-married Autumn Phillips opts for a more traditional shape fuchsia hat
Black and white are always welcome together at the races - think Audrey Hepburn in My Fair Lady and you get the idea.
Whether topping a matching monochrome outfit or adding drama to plain black or white, the contrasting shades are tough to get wrong.
Monochrome: Whether elaborate lace or a chic and sculptural, black and white is always sophisticated
If it's lace and flowers you like, today's racegoers did not disappoint.
One flamenco-inspired racegoer wore a thick covering of velvety roses across her head, interspersed with giant insect wings made in the finest gossamer lace.
Another, Emily Clark, a milliner from Chicago, wore one of her own designs, a rippling hat in vibrant turquoise and sky blue decorated with feather-like lace and delicate star-shaped flowers in bright sunset tones.
Lacy days: There's nothing conventional about this flamenco-inspired number, left; or right, milliner Emily Clark's own design