When I'm stuck at work and I need a quickie*, I rely on Cary's List of the Day blog. It's not all G-rated and polite and shit, so those with... sensibilities might need to occasionally avert their gaze. But even though the humor may sometimes be some combination of crude, rude, and/or un-pc; it's good, reliable, and prolific -- sometimes upwards of 6 or 7 times a day! Other than going pee, I can't think of anything else that I look forward to 6 or 7 times a day.
There are so many great posts I could point you to but it would take longer than my attention span would allow. So here's a recent favorite of mine and Mr B's. Mr. B is always happy to get a nice meal.
If Men Wrote Advice Columns (LOTD)
* And who doesn't, really?