Yip, back then you always double rubber banded your deck of punched cards, some triple banded, least those whose first floor shuffle drop was down some stairs.

Yip, back then you always double rubber banded your deck of punched cards, some triple banded, least those whose first floor shuffle drop was down some stairs. Funny one was when a friend of mine interrupted the typist punching my coding sheet onto punched cards. He kept putting a typed page back into the untypes pile of what was 5 pages. Got the deck and was mildly flummoxed what was wrong as had a chunk of code repeated 3 times (the number of times he did it without the typist noticing). But one perk of punched cards - removing lines of code is as easy as removing the associated card. Also be mindful of prankster who would stick random cards into your deck if you left it unattended, added a real new meaning to joker in the deck. Today, they would just call it a code injection exploit. Which is why I and others would often sign the deck along the edge of the cards and do some lines at various angles on the other long end so you instantly see if something is amiss. Today they would call that signed code.