A little but invaluable tool I've used in my 4E games. I mark up player characters' passive perceptions and insights, plus any other important notes (that don't need to be secret) on this sheet, and when it's time to fight, initiatives are easy to mark on the left side of the sheet.
Below the tables there's a large empty space; you'll find use for it when you start calculating hp's of the enemies!
*Edit: Fixed the link. I blame stupid buggy cms not working and ISP cutting my connection for hours when trying to fix the link.*