A new offical third-party game accesory has recently become available.  It's a premium Mice and Mystics insert from InsertHere.  It organizes all of your bits from both the base set and the Heart of Glorm.  The insert is designed to be used with either sleeved cards or unsleeved cards.

To pick one up and see the other inserts from InsertHere visit: www.inserthere.me