Comment by PaulHoule

For small simple projects it is OK but for small simple projects I think it is even better to write out TODO lists on paper and copy them when you run out of space with too much crossed out. The act of copying helps you review them, and I find any electronic solution is another window I have to find on my screen that distracts me from doing tasks.

If your project is really big on the other hand, a lot of people are working on it, you need tools to estimate it, and copying it every few days is not an option, you want JIRA, something like it, or at the very least Github Issues.