We do a few things at our plant:
- If we can, we'll laminate it and use a magnetic strip to let it stick to a machine;
- We have several work instructions held in departmental binders that are stored in a central area of the department or at a specific machine; and
- We have those stand-alone magnetic whiteboards placed in a few areas. One side is for production notes/announcements and the other is for work instructions/safety signs.
You may also be able to store work instructions on a computer workstation for a line, if you have them. I don't recommend it unless you have a way to remotely update the work instructions on each station all at once, however (it would be such a pain to go to each station for a separate update).
For safety things, you could also try installing and using a few tv/computer screens on the wall that just play general plant safety information on a loop.
Hope this gave you a few ideas to try out!
"Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution."- Albert Einstein