Today's #FreeSoftwareAdvent is another bundle, of four amazing terminal utilities for keeping organised:
* mutt, an incredibly versatile email client: http://www.mutt.org/
* vdirsyncer, a tool for synchronising calendars and address books: https://vdirsyncer.pimutils.org/en/stable/
* khard, for interacting with contacts (vCards): https://github.com/lucc/khard
* khal, for interacting with calendars: https://github.com/pimutils/khal
Use with tmux to get all you want to see on one screen / via one command :)