H is for Handwritten Letters and Handheld PDAs.
Gone are the days when people write letters by hand. I've had my days of reading unreadable penmanship, too. I guess all of them illegible writers are happy to have a computer to type their letters with, click print, and do magic. Emailing galore! Hello to arthritis! Well, handwritten letters, for me, exercises my hand, and it circulates the blood in my hand. I even practice my left hand to write. Ambidexterity to the max! I'm not saying that it's totally obsolete because I still write by hand, and I know a lot of others who do so. Still, emailing has replaced it more than half of the percentage, so yeah, it's kind of an old school.
Handheld PDAs or personal digital assistants were quite famous in the past. Palm Pilots! I had one and I was so happy with it, but it was just a heavy stylish digital calendar, clock and address book, nothing special about it. They are now all gone, I think. They were replaced with our smartphones. Our phones have more than just a calendar, a clock and an address book. It's a phone! It's also a game, a mailbox, a diary, etc. It's not just a personal digital assistant, it's a pocket-sized psychiatrist!