Brits have revealed their unique ways of treating themselves, which include watching 'bad' movies, drinking from a favourite mug, and eating peanut butter straight from the jar. A survey of 2,000 adults found that they typically indulge in treats about three times a week, with Friday being the most popular day to do so.

Other unconventional examples include changing the bedding, having coffee before bedtime, and enjoying pudding for breakfast. However, a quarter of adults don't believe they treat themselves often enough. Of those who feel this way, 43% plan to make more effort to change this - and some already have, with 18% treating themselves more frequently over the past year.

The research was commissioned by Kahlua, which has partnered with Tony's Chocolonely to create 40 martini glasses made entirely of chocolate. These are available from Dirty Martini in Bishopsgate, starting from Friday, April 18.

Craig van Niekerk, spokesperson for the coffee liqueur brand, which has also launched an Espresso MarTony cocktail available at Dirty Martini venues nationwide for one month from Thursday, April 17, said: "It's important to treat oneself - no matter what day of the week.

"As the research shows it's possible to do just that in the smallest of ways - it doesn't need to be a grand gesture. But it is fun to push the boat occasionally and really indulge yourself."

The study revealed that 50% of people consider their favourite treats to be indulgent, with some unusual self-indulgences including ordering food to work, enjoying hot chocolate in the summer, and devouring an entire tub of ice cream.

Other popular treats include creating a cereal cocktail - a blend of different cereals served with milk, sipping cocktails in the bath, and having breakfast in bed.

Interestingly, nearly half of those surveyed, 49%, believe it's impossible to overindulge oneself.

To promote Kahlua's cocktail, sustainable chef Lagom Chef Martyn Odell features in a new video where he is seen serving the drink in an edible chocolate glass to a surprised customer.