Here's a cautionary tale about checking the price before you part with your money.
We've all experienced that sinking feeling when you realise something is a lot more expensive than originally thought.
One mum was left feeling frustrated after a visit to a seaside food festival left her out of pocket.
Everyone loves pick 'n' mix - the joy of choosing your favourite sweets and piling up the bag high, ideally with some extra freebies pilfered along the way.
But you don't expect to shell out a whopping £31 while doing so, as one mum was recently charged after filling two bags.

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Sharing the tale on Mumsnet, she asked if that seemed like a reasonable price for the amount, with many people feeling that it was too expensive.
She wrote: "I was at a seaside festival with [my daughter] yesterday, and looked around the food stalls before we left. There was a pick & mix fudge stall, you fill your own bags and get them weighed.
"I picked a small selection for [my daughter] & I for the journey home, and a slightly bigger one for my parents, as we're seeing them tonight.
"Lovely fudge - salted caramel, candyfloss, oreo, every flavour you could imagine, but I couldn't believe it when asked for £31!! Paid wasn't allowed to put any back, so we'll make it last!"
She added: "It WAS delicious, I admit, but have learned my lesson!!"
After sharing her story on Mumsnet, others agreed that it seemed like it was overpriced.
One woman joked: "That takes the p***. I'd want a £20 note in my fudge for that."
"That's extortion. I just would have walked away, to be honest. These kinds of places are banking on people being too embarrassed so just will hand over money," wrote another.
A third added: "We did the same thing at a sweet stall at a Christmas market. £18 for a bag of pick and mix that I could have got from Poundland for a fiver
Lots of people sympathised and shared their experiences of being stung while buying olives at a market.
One Mumsnet user wrote: "I've been stung by one of these ripoff merchants on 'artisan' stalls, about 20 years ago at a food fair. Olives, of course.
"It's a shame because it's made me suspicious of all stallholders; unless their prices are clear, I won't even approach."
Another commented: "I was stung by some olives at a farmers market a while ago. It worked out as literally £1 per olive."