I definitely agree with using both an Excel file and a notebook to keep track grades, attendance, notes, etc. The notebook is an excellent physical backup, and I keep one for each term I teach. I used binders all the time when I was a student, but they tended to get bulky. Since my classes aren't large, I have a dedicated back pack with many pockets for all my course material and graded papers.
At the same time, at our college, we also use Engrade as an online gradebook. Program directors and students can check their progress at any time. Usually Engrade has no server troubles, so if anything happens with our college's internet connection, students can check their grades at home or on their mobile devices. If available, Blackboard is also wonderful in my experience.
