7. Old Postcards
Postcards from paper are undoubtedly old-fashioned. Back in the day when people went on holiday, they used to send it with messages to their family and friends. However, the trend has died out due to the development of the internet and social media. Instead, we have Twitter and Instagram to show all our mates where we’ve been.
Now, there are also individuals out there who are collecting postcards as valuable items. Bear in mind that individuals are searching for such subjects and places to shop. For each card, you might not make a lot of money, but if you have a big collection in your attic, the money coming in from those sales may add up.
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