This is exactly the kind of thing I was looking for! I love projects that can make retro computers relevant in the modern age and this little utility does a great job. I bought a copy and am using it to keep track of tasks in my office, especially retro-computer projects. There are a couple quirks but overall it works great!
Viewing post in TODO List Manager (C64) comments
Just listed the code. Wow, that is a lot of work. One potentially simple suggestion and one aspirational. The simple suggestion would be to have the program ask if you want to save when you push 9 to Quit. Currently it is easy to quit without saving recently added items.
The aspirational change would be for people using either a C64U or some type of device with real time clock like the 1541 Ultimate II+ to check the date using DOS commands each time the program is loaded. Then you could create an option for recurring items that reset each day, or have items with deadlines. Either way, it is already a great program with a surprising amount of functionality.