What exactly constitutes "work"? The way the question is phrased seems to imply that work is something which you have to make an effort for in the first place - sometimes, though, that isn't true. I do program a lot at work, mostly in Perl and PHP, and occasionally in other languages, but it's too much fun usually to really be something that could be called an effort.
Of course, there are times when work is not fun, too, but with regard to programming at least, that almost never happens to me. Well - maybe I'm just lucky. :)