An interesting post from Jarek Piórkowski about the open data available for Presto card users about their transit usage (Presto is the contactless transit fare scheme used in the greater Toronto area and in Ottawa).

(I tried accessing my own Presto usage from trips to Burlington I made in 2017 and 2018, but the Presto verification process went sideways for me at some point after my initial registration and I’ve never been able to resolve this).