I like it because if I stick to it, I can have 4 or 5 windows of code open at the same time, spread over one screen. Header files, caller code, and called code

I like it because if I stick to it, I can have 4 or 5 windows of code open at the same time, spread over one screen. Header files, caller code, and called code all visible at a glance. If I don't stick to 80-cols, it's actually a roadblock to getting stuff done, and it's really not that hard to keep within the 80 column limit. I don't specifically care about the '80', I just care about what doing that, lets me do in turn. So my code is pretty much religiously 80-chars max across. YMMV :)