Using classic Outlook for Windows in business environments
I find it mystifying that we can get photos of Mars, far-off galaxies, and even possibly habitable planets, but Microsoft in its usual, "let's surprise them" move, has vaporized a function that made my life so much easier with two calendars and clients with meetings. This is a technology bridge too far as they hurl us into the "NEW" outlook which is clunky, weird, and just plain annoyingly inferior to what they are trying to replace.
Good job again Microsoft! Another product was destroyed!