9. Mail-collection boxes
Pity regular letters, the kind for which you lick envelopes and apply stamps. Not only are they saddled with the insulting term “snail mail,” but they’re also fast slipping away to be replaced by their nearly instantaneous competitors, email and texting.
Disappearing even faster are the bright blue U.S. Postal Service mail-collection boxes that used to decorate many a neighborhood curb.