I try to keep my post-processing to a minimum, which isn't to say that every shot I take is perfect (quite the opposite, actually), but I'm not very good at post-processing, and the less time I have to spend doing anything, the saner I stay. Plus, I still feel like 'm in the "learning" process, and if I've post-processed the heck out of a particular photo, I may not remember what it was I did wrong (that said, I always keep the original, untouched image as well).
The majority of my "post-processing" consists of resizing photos, to make them upload a wee bit faster, possibly some cropping, and slapping the copyright info on it. This isn't to say I haven't done more (case in point,
the orange bear that I managed to
convert back to green), but I try not to if I can help it.