With the start of November and the threat of winter, one lady has it all covered - Monica Wallace has made thousands of little wooly hats as part of the Big Knit campaign in aid of Age UK.
But one daring campaigner didn't feel the cold today as she posed topless in Trafalgar Square to highlight World Vegan Day.
The King of Pop appeared to rise for Halloween as New Yorkers recreated Michael Jackson's thriller - all in pictures of the day below:
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