That's likely a me problem; getting bored with the tool itself, but I often find myself reverting back to a pen and notepad, paper, notecard, etc.

This usually happens after using an app/software that is needlessly complex and ends up requiring me to manage it rather than it providing any organizational or "productivity" value. (A lot easier to write a task at the top of a notecard rather than assigning 27 "priority" tags, deadlines, location, categories, etc. to the thing)

I know everyone is different in this realm, but very interested in what's been working for you.