When you are really ready to focus, Adminja's Today view serves up only the things that really need your attention. From here you can reorganize, prioritize, and simply focus and knock things out.
Your Today view (and, client's individual Today panels) will automatically display anything that is due or past due, and anything that you have flagged.
Flagging Tasks for Today
Every task has a small "sunshine" icon. Toggle it on and that task will appear in your Today views.