In August 2017, a few of us were inspired by the video at the link below. It's the story of a woman who went to the gym 100 times to try to get herself out of a rut. I saw it when George Takei posted it on Facebook along with the question, "What would you like to do 100 times?"
https://www.youtube.com/watch?v=I5FkshLcNLQ
Her video was part of a larger movement online called "Give it 100" which, as far as I can tell, is now defunct.
I decided what I wanted to do 100 times was work on my fiction writing at least 30 minutes a day. The times do NOT need to be consecutive. Since I knew I would miss a lot of days here and there, I was aiming to complete my 100 days by January 15, but I actually ended up doing 110 times and finished them in mid-March.
Others joined in at various points - nswef has counted times of a certain number of steps a day and I think has also counted days doing 15 minutes of decluttering and/or some writing. Chicken Lady got 30 days in her studio in November and has also counted swimming and various housekeeping/decluttering tasks.
Anyway, if anybody else wants to join in for 20, 30, 100 or however many times of something, please do!