Making a list of things that you need to do is not the same as being productive. Spending an afternoon on a "planning retreat" is not being productive. Writing down ideas for ways to change in the future is, you guessed it, not being productive. Ok, if you want to be technical, I guess you've got a piece of paper with a nice list at the end of the day.
You know what is productive? Execution. Taking something from one of your many lists and actually DOING IT, that's being productive. Being able to, at the end of the day, cross something off of your list, that's being productive.
Now, before you get all kinds of upset, know that I'm writing this first and foremost for myself. I've got tons of lists and sure, they're helpful reminders, but holy cow it can be overwhelming. Seeing lists which day after day go neglected is downright depressing, and the only thing that makes it worse is adding to them.
So again...speaking first to myself here...DO something today. Knock something off of your list and feel the freedom that comes with a task accomplished.