This idea – delete some things from todo-s, is very hard to implement in a team or even realize it yourself. That means consciously choosing, not by the random (the flow of time also helps with the random choice). You will choose anyway, only the method for choosing/deletion is different.

One not a very perfect solution is to create those daily todo-s. For positive side, they demand that you delete some stuff every day, refactor every day, but the timespan is way too short to really offload todo-s. It might depend, but usually I have some weeks worth of things that should get done (many never do).

At the present moment I use a todo based on freemind (only for the stuff that I need out of my mind, todo later than today). Perhaps not the “in from the up out from bottom” style, that means some stuff gets out of it only by delete ;) It is easy to write down something, rearrange it and also, you will immediately notice, if it is becoming a todomonster that will start eating you. It is not running all the time, so every time I open it I refactor. If I have real-time problems (somebody is waiting for me) then those go to some paper corner, perhaps it could be named a high-priority list along with all the notes for that task.
Besides, I don’t want to bother all that much with scheduling tasks.
So, in some idea I also use a variant of very short daily todo-s (that usually all get done and many are not written down) and then supplement it from freemind based.
If for many days all I do is from quick daily tasks then I decide that I am overloaded and just take some time to think about all the small quick tasks, what could I do about them.

If you start a todo then you can have a weird but in reality not that bad an option, use it for a month, then read it through and delete all of it, just use the del key. Some stuff will start to stink, so what, we don’t live in that a perfect world. You will remember most of the important things anyway. And it wont be that much a different from your pre-todo list time. And then start a new one.
The idea is that at first you wont have the heart to delete all the tasks that can be deleted, so try and look, what really had to be done, what was important. But you can find that out only by looking to past and comparing that to your todos.

There he points out the importance of reserving blocks of time with “Guilt free play”. Schedule your leisure time and make sure that no matter how much work you have to do..you keep this time protected.

This will change your psyche and make a subconcious drive to get more done during the GTD time. If all time is open for GTD work it will drain your power. Then you feel bad because the list is huge..and you feel you have to to something all the time to make it smaller… which does not work..at all. You can do 50 items in a day and still feel bad.

I feel that his book complements the David Allen GTD book in a very good way.