Pathfinder Dice Tray [RPG]

I picked this up because, despite twenty years' practice, I still frequently roll dice off the table.  I also lose dice underneath papers or amongst all the other clutter on the table.  The Pathfinder Dice Tray has proven an elegant solution, as it stores flat but snaps up in a few seconds to make a durable rectangular box.  It actually has saved me time during the session, as I'm less likely to have to search all over for my dice or chase them across the floor.  

My dice still sometimes tumble out, but I blame my low Dexterity score rather than the tray itself.