Cisco Umbrella. Tried it on a small scale as a test and have been very impressed by it. Cheap, quickly deployed (especially remotely), cuts down on a chunk of stuff. Impressed so far. Also Automox, same sort of thing. Cheap, easily deployed and cuts down on another attack vector. Also Crowdstrike, not so cheap but still easy to setup and manage.

Mobile phones continue to be a bit of a management issue though, I still feel there is a lot more work the sector needs to do to solve BYOD style stuff.

Discord believe it or not. When it became clear that we all had to work from home we evaluated a bunch of web conferencing tools that needed to work on Windows, macOS & Linux. And the one tool that worked right out of the gate with screen sharing and decent audio quality was Discord. Everything else was flawed in some aspects.