Wow, thanks! I just used Sublime Text 2 (which I admittedly haven't bought so the prompt to buy it pops up every now and then when I save, gulp!). I have a ruler set at 80 chars and try not to surpass it.

Also, I have a JSHint plugin installed on Sublime which scans the document every time I save it and checks for missing semicolons, implicitly declared variables, etc.