Jason, who is a great indie developer, has a the calendar checker extension which he maintains - free with paid extensions [1]. I highly recommend it and you ge

Jason, who is a great indie developer, has a the calendar checker extension which he maintains - free with paid extensions [1]. I highly recommend it and you get to support an indie developer making cool useful things. He also has a bunch of other cool extensions. [1] https://chrome.google.com/webstore/detail/checker-plus-for-google-c/hkhggnncdpfibdhinjiegagmopldibha?hl=en https://chrome.google.com/webstore/detail/checker-plus-for-g...