You might want to check your change as there are some rare 50p coins out there which could be worth a lot more.
While most 50p coins will be worth exactly that, there are others which could fetch hundreds of pounds from the keenest coin collectors.
The website Change Checker keeps a close eye on which coins are worth the most with its scarcity index.
Its 2019 update includes some changes with Peter Rabbit coins extremely sought-after.
Change Checker said: "With such low mintage figures (just 1,400,000 of each coin) the 2018 Peter Rabbit and Flopsy Bunny 50ps were bound to be scarce, but it’s remarkable to see just how high up the Scarcity Index they have actually placed.
"In fact, these coins are now the second and third most sought-after 50ps in circulation (excluding the Olympic 50ps).
"Mrs Tittlemouse has also infiltrated the Olympic 50ps, which currently dominate the first half of the index.
"The other four 50p coins to enter circulation in 2018 are more common and therefore have found their way onto the second half of the index.
"However their addition has pushed the majority of the lower scoring coins down the chart and has had a significant impact on the Roger Bannister 50p, which has moved down the Index by 16 places.
"Of course the top scorer is still that Kew Gardens 50p, which is considered by many to be the holy grail of change collecting, with a mintage of just 210,000!"
So open your wallet, get digging down the back of the sofa and empty your piggy banks in the hunt for these coins.
Kew Gardens 50p
This coin was released to celebrate the 250th anniversary of the foundation of Kew Gardens
The Kew Gardens 50p tops CoinChecker's scarcity index list.
It's stamped with the Kew Gardens Pagoda and with just 210,000 minted compared to a standard minting of around five million, it's classed as very rare.
That means they can sell for anything above £30 if you can find a collector.
How much it's worth: On eBay, coins areselling for as much as £400.
Football Olympic 50p
The London 2012 Sports Collection comprises 29 50p coins representing the 29 Olympic sports
However, the football edition is classed as the rarest (although still over 1 million were struck).
Designed by journalist Neil Wolfson, the coin was created to encapsulate football in a simple image. As the offside rule is a perennial talking point, the image is designed to provoke discussion, which was what Wolfson was aiming for.
How much it's worth: Coins sell for around £45 online.
Judo Olympic 50p
Another sought after coin is the Judo 50p, which also launched to celebrate the London Olympics. There are 1,161,500 in circulation right now.
How much it's worth: On eBay, this coin has been exchanging hands for around the £24 mark.
Triathlon Olympic 50p
The Football 50p is not the only valuable Olympic coin in this set - in fact there are five that collectors are after.
The Triathlon coin by Sarah Harvey shows a runner, cyclist and swimmer.
Royal Mint figures show there are 2,179,000 in circulation.
How much it's worth: The top price these sell for is £27.
Wrestling Olympic 50p
Roderick Enriquez, a graphic designer from London, chose to design the wrestling 50p coin because it's such a historical sport, and one that played a significant part in the Olympic and Paralympic Games. There are an estimated 1,129,500 in circulation at present.
How much it's worth: This coin has previously sold online for around £16.
Released in the year before Andy Murray beat Roger Federer to a Gold medal in the 2012 Olympics, this coin depicts one of the nation's best-loved sports - and is part of the stunning Olympics collection.
How much it's worth: On eBay, this coin has been selling for around the £21 mark.
Played competitively in more than 100 countries, Goalball is one of the most popular Paralympic sports.
Jonathan Wren, a freelance animator from Buckinghamshire was the designer of this 50p.
How much it's worth: On eBay, this coin has been selling for £21.
Rowing is one of Britain's most successful Olympic sports, and the only one where team GB have won a medal at every Games event since 1984.
The Rowing 50p was designed by David Podmore, a graphic designer from East Yorkshire. He has a strong interest in typography and a great admiration for the sport - both of which are reflected in his design.
How much it's worth: On eBay, this coin has been exchanging hands for around the £14 mark.
Olympic shooting events are split into three categories; Shotgun, Pistol and Rifle. Britain claimed a single gold medal in the 2012 games.
The winning designer of the Shooting 50p was Pravin Dewdhory, who drew inspiration for his design from the graphics used in the London 2012 branding.
How much it's worth: On eBay, this coin has been known to sell for around the £23 mark.
2018 Mrs Tittlemouse 50p
2018 Peter Rabbit 50p
2018 Flopsy Bunny 50p
Other coins which could be worth a pretty penny
Follow Hull Live
Our daily newsletter - To get the latest headlines direct to your email inbox every day, click here .
Download our app - You can download our free app for iPhone and iPad from Apple's App Store , or get the Android version from Google Play .
Follow us on Instagram - On the Hull Live Instagram page we share gorgeous pictures of our stunning city - and if you tag us in your posts, we could repost your picture on our page! We also put the latest news in our Instagram Stories. Click here to follow Hull Live on Instagram .