I have always written a lot of letters. I use a collection of fountain pens and different ink depending on my mood. It costs me a small fortune in postage stamps but it's worth it.
My last post was about oral non-face-to-face communication but when I was a youngster letters were still the way almost everyone communicated with their relatives and so on who didn't live nearby.
Then came The Internet and home computers which allowed us to send emails. Email was cemented in the public consciousness with the notorious “you've got mail” sound of email arriving for AOL users, which formed the cornerstone of the 1998 Tom Hanks and Meg Ryan romantic comedy, "You've Got Mail".
Then, for me, came Blogging in June 2007 as a way of communicating what I was doing in Scotland and New Zealand to my friends and family in the 'other' country.
In 2004 Facebook arrived but I was never part of it until 2010 when it was possible to 'post' your Blogger post on Facebook using Networked Blogs. That was discontinued by Facebook long ago but I stayed on Facebook though I rarely post.
As well as emails we could text each other on our mobile phones.
Twitter (Now called X and owned by Elon Musk) arrived 21 March 2006
WhatsApp (Meta) arrived in 2009
Messenger (Facebook) in 2011
Telegram (Pavel Durov and Nikolai Durov) on the 14 August 2013.
TikTok (ByteDance) in September 2016.
In 1944 (the year of my birth) a simple letter in the UK was 2½d which is the equivalent of 56p today. In fact a first class stamp today for the same letter is £1.35. However, except for communicating by landline or mobile phone which are usually included in monthly rental these days all the other methods I've mentioned above are available "free".