If you’re a Slack user (and you should be) and wish to use the Mac app, it’s a bit tedious for those of us who are in multiple teams. They’ve recently released a beta version that has support for multiple teams in a much better interface. You can download it from HockeyApp at this URL: https://rink.hockeyapp.net/apps/06bd6493684f65a3b8f47aca92c9006e