I'd like a quick and easy way to suspend the scheduled refreshing so that while I'm working my way through reviewing and acting on the messages in the grid, MW doesn't download a new batch of messages and sprinkle them all over my carefully-reviewed grid. Some sort of a toggle that changes the display enough that I can't forget I've done it, like maybe changing the "Check Mail" icon to a blinking "Suspended" icon. Another entry in the drop-down on the Check Mail icon would work for me as a way to engage the option - maybe with a check-mark toggle.
This is a possible alternative to the "Wash Reviewed" suggestion...