Some people recommend taking a cold shower to kill off sexual desire, but I've never seen that it's that effective. While the cold water does indeed cause significant shrinkage in the male member, it's been my experience that the shrinkage is way, way temporary -- in fact, it's also been my experience that cold showers just getcha even more anxious once you get dried off. (But maybe that's just me, sez I, flexing and posing for the ladies)

Of course, if you live in hot and humid climes without air conditioning, as I used to, cold showers are a vitally important part of your life. To avoid sweating myself down to a husk in the summer, I used to take one in the morning, one right after work, and another right before bed. All that extra anxiousness was a small price to pay to be a little more comfortable...