A trick I used to use in the floppy disk era:

    $ mount /mnt/floppy
    $ mv !$/file_I_needed .
    $ u!mo

The last command would umount(8) the floppy.

I use !! all the time, specially when first using find to see which files I will operate on and then doing the actual operation:

    $ find . -name '*Foo*.scala'
    path/src/main/scala/foo/Foo.scala
    path/src/test/scala/foo/FooSpec.scala
    $ git add "$(!!)"

Shameless plug: I actually use nq, my find wrapper: https://github.com/rbonvall/nq