Here is a rule that is valuable but is found in few offices.
Staff desks are for storing personal items. All work has to stay on top of the desk. That’s a good way to ensure that nothing gets overlooked. For the manager who questions the wisdom of the rule, take a look in any desk after someone quits. It’s amazing what people find there. And much of it is costly, such as incidentals that should have been billed six month ago.
Take away the temptation to stash work away and say no work can be stored in desk drawers.