I recently found an app that helps me organize notes, plans, and habits all in one place. It’s simple, intuitive, and free of unnecessary complexity — just perfect for me. Planning is so important because it gives you a sense of control, reduces stress, and actually helps you achieve your goals.
I use a combination of tools. Since I'm an advocate of open source things, I normally use GitHub for issue/todo tracking and Joplin for Markdown notes.
Otherwise you'd have to get more specific than just "planning" as it's REALLY broad of a question.