As a stamp collector and traveller, I appreciate very much receiving postcards, but it doesn't happen so much these days and when it does, it's a real treat. Internet, social media, whatsapp, have provided instant ways to communicate, from almost everywhere that has wi-fi. I do this too, but I always try to find a few interesting postcards to send, provided I can locate a post office. On a 10 day trip around the Baltic capital cities of Lithuania, Latvia and Estonia I was lucky to find cards, stamps and post offices!
In Vilnius, I purchased two rather lovely woollen jumpers at bargain prices but soon realised they would be too heavy and bulky to included in our luggage, so had to find a Post office in order to send them home. It had interesting Commemorative stamps on sale, but sadly I wasn't able to put these on my parcel, having to make do with a rather boring label and customs declaration! The jumpers arrived home long before we did though! The postcards were sent a few day later, from a post box near the main bus depot, but took much longer to arrive at their various destinations.
The historic post office in Tallinn, opposite the Cathedral, was a beautiful building, and also had a wonderful selection of postcards and a wide range of beautiful Estonian stamps, and this proved to be a very efficient postal service!