From Pinner: And my Thirty-One Organizational Utility Tote.in love. (The plastic open-top file box (the medium size) is from The Container Store.)--love the idea of adding more structure to the bag for files!
"a data collection tool used by special education teachers, therapists and applied behavioral analysts. * Easy Duration Recordings * Student and Behavior Database * Affordably Priced" would be good for RTI data collection