There are certain things about postcards that people like using. They are a physical connection with the recipient, unlike a text or email. People have this idea in their head that it's an old-fashioned medium but it's not. The claim that's often made by telecoms companies that text or picture messaging is killing the postcard simply isn't true.
Entrepreneur and business mentor Jonathon Jay started a business providing life-coaching training with almost nothing, but quickly made money with a simple postcard-mailing campaign.
...Many startups become too focused on starting the business and don't concentrate on measuring whether the £200 they spent at that trade show delivered the goods.
Win friends and influence people with postcards.