This may be one of those posts that no one other than me cares about, but I've been meaning to take a snapshot of the software tools I use on a daily basis right now, and how they're useful to me. (This comes at a time when I'm considering a major OS change in my life -- more on that later -- so as a part of that I need to inventory these tools anyway.)
So every day when I get up and stretch my arms in front of my energy inefficient, eye-strain-causing big blue wall screen with a cloud in the middle, grumbling to myself that we now call things "apps" instead of programs or software or really any other name, I see:
Airmail 3 - my main tool for reading, sorting, sending and finding email across a few different accounts. Replaced Thunderbird with it a few years back, really good choice.
Chrome - on the desktop, my daily browser of choice. I tried the new Firefox recently and liked it, but not enough to switch. I have lots of extensions installed but some favorites are Adblock Plus, JSONView and XML Tree, Momentum, Pinboard Tools, Postman, Signal Private Messenger, Vanilla Cookie Manager, Xdebug helper and Web Developer. On mobile I use iOS Safari.
macOS and iOS Calendar and Contacts - works with all of the various online calendars and address books I sync to, have stayed pretty intelligent and user-friendly without getting too cluttered.
Slack - for communicating with my co-workers and others. I have accounts on 11 different Slack instances, and only stay logged in to about 4 of those at once.