[whpalmer4]

Another tactic is to use a "tickler" perspective, context mode grouping by start date and closing all the groups except the one for items starting today. You can make a similar one grouping by due date to show you those items which have an imminent deadline. In the morning, you have a look at the urgent perspective, knock them off, switch to the tickler perspective to knock off anything starting today which seems appropriate (making it less likely that you'll see it again in the future on the urgent view), then work the flagged items. If you've installed them as toolbar icons, it's easy to rotate through those views. When you save a perspective, if you have the Expansion box ticked, it will remember which groups were open.

If you finish off the stuff you've got on your plate for today, it is easy to cast the net a bit wider by opening up another group in the view, whether that be tasks recently turned available but not yet done, or items due in the next day or week, etc.