add cell numbering
it would be easier to say to my colleagues "have a look at cell #15" rather than "scroll down and look for such and such title, after such chart".
it's ok if the cell numbers change even though i add and remove cells often. cell numbering is helpful when i'm asking someone to review something, which lasts about 15min most of the time. if i move the cells around, i'll inform them which cell again, that's not really a big issue for me.
Cell/command numbers are now supported. Under the File menu enable “Show Command Numbers”. In addition to cell/command numbers, you can now click on a command number, which changes the URL. You can, hence, share links to particular cells/commands.