Gym history by IFTTT and Google calendar

I declared to go to gym twice a week as the new year's resolution. shoutm.hatenablog.com Last year, I have not recorded when I went to gym so I couldn't review my effort. I wanted some web service with which I can mark a calendar when I go to gym. So I tweeted this, ジムに行った日は○、みたいなWebサ…