From old school gaming devices to dolls and trading cards, you could be sat on a fortune without even knowing it.
Thanks to TV presenter and collectables expert Tracy Martin, you can find out what items you may be keeping in storage that could earn you a pretty penny.
She claims that vintage toys tend to stand the test of time, never losing their value no matter how long ago they were made or in use.
Speaking to Sky, she said: “Toys are always going to be popular because they tap into nostalgia, our childhood memories.”
Tracy explains how adults like to buy the toys they used to have in order to re-live those long-forgotten moments.
And some of the most sought-after vintage toys include old diecast vehicles from Matchbox, Corgi or Dinky Toys.
A Corgi Toys “James Bond” Aston Martin, for example, could fetch you between £600 to £700 on toy auction site Vectis.co.uk.
Gameboys are also worth selling for some extra cash, with online marketplace OnBuy listing models for £36.90 and high-street retailer CEX offering £32 in cash for any models.
Old PlayStation’s, such as the PS2, are just as likely to earn you some cash, with many gamers on the lookout for some retro fun.
Providing it’s got all the necessary parts and even a controller, you could be onto a winner.
Another constant in the retro toy world is Pokemon cards, which come in as one of the bigger money spinners.
Unopened sets could earn you “thousands and thousands of pounds” according to Tracy, stating she’d seen one sell for £16,000.
Those who own large collections of the trading card game are urged to check which one’s they have and whether they are in possession of a complete set.
Checking your attic could be the best piece of advice you’ve ever received.
Also on the list of sought-after retro toys are Sindy dolls – in particular those from the 1960s.
One vintage 60s bundle is currently selling for £250 on eBay, with single’s listed for the more reasonable price range of £20-£40,
Barbie dolls from the 1990s are big hitters too, fetching anywhere up to £50 for individual toys.
Bundles could see you double your money, although they must be in good condition to attract the highest offers.
Pokemon cards have seen a massive surge
Tracy Martin, collectables expert
Furniture trends are also worth keeping an eye on.
Tracy says there’s currently a surge in people wanting to buy “mid century” furniture, which is roughly dated from 1945 to 1965.
With this in mind, heading out to your garage or storage unit where you’re likely to have these things stored up should be top of your agenda.
Prices linger around the low hundreds but anything Danish and with a good designer name could see you earn into the thousands.
Collectors items and vintage toys are no joke when it comes to collecting a profit.
Anyone who wants it hard enough will pay silly money just to have it amongst their personal collections.
Elsewhere, vintage framed prints can range in price from £50 upwards to a few hundred pounds plus.
Best ways to sell your items
Vintage clothes, handbags and shoes can also fetch a good price.
Popular brands like Converse and Dr Martens collaborations do well, depending on the design and condition, as well as household names like Adidas and Nike with their limited edition trainers.
But when it comes to shoes, “the quirkier the design the better,” according to Tracy.
If you’re wondering what the best way to sell items are, then look no further as we’ve got you covered.
Websites such as Vinted, Gumtree and Etsy are some of your best bets, while you’ll struggle to go wrong with eBay.
Listing your items for auctions is a smart way of doing things as it encourages buyers to keep placing high bids in order to get what they want.
Naturally, however, an item’s value takes into account its rarity, and condition, along with the brand and era.