*Granted, it's not easy to come up with a replacement symbol. The floppy disk example demonstrates the folly of equating the save symbol with the physical object used to save information; things just move too quickly. Maybe a cloud, representing cloud computing, could work. But even this less-literal metaphor equates the method with the outcome.
In a similar vein, New York's Vulture blog recently had some fun compiling a list of movie clichés that technology just can't kill, including my personal favorite, automatic windows:
Any time a character needs someone to roll down a window, they still make the crankety-crank motion, assumably because mime-pressing an imaginary automatic-window button is just way too hard to decipher.