Recently, a friend took an employment exam. There was a keyboarding test, but there were also questions. One question asked how you would arrange four very similar entries if you were using the Gregg filing system.
After the test, my friend searched the Internet in vain for an answer. She emailed me. I reached up to a shelf and consulted my 10th edition copy of The Gregg Reference Manual, published by McGraw Hill.
Its Appendix C describes in detail the Gregg filing—or "indexing"— system. In that system, we ignore all punctuation and all upper case versus lower case. Numbers precede letters. And nothing precedes something.
So if I had these four names, all of them single "units,"
Hogwarts,3
Hogwarts.35
hogwarts.,45
HOGWARTS.6A
…then, in the Gregg filing system, they would be in this order:
HOGWARTS3
HOGWARTS6A
HOGWARTS35
HOGWARTS45
