Nutex Radium condoms ($196).
The old-timers may have used radium-infused condoms to lower their sperm counts, but we here in the 21st century have laptops. That’s right, everyone’s favorite electronic lap dancer can actually damage sperm, it’s all right here in this fascinating health article. “However the study showed that within the first 15 minutes of laptop use, scrotal temperature increased by one degree Celsius. This indicates that it does not take long to reach a point that may affect testicular function.” Cheaper than a vasectomy! Shoot enemies in War of Worldcraft, shoot blanks later!