Loose Calendar FTW is a calendar where each day has a little memo. Don't need something fancy and complicated like Google Calendar? Use this!
It stores data in your browser's local storage, none of your data is sent to the server.
I made this in a couple of hours, so please tell me if you find any bugs. Especially the timezone/language stuff. It's supposed to reflect your timezone and language, but I'm not sure if it works on all devices.