Alainplus, now how we would monitor something like that?
I think it would be better if we just supported each other. My own 30 Day Challenge with respect to this also extends to not just masturbation but even looking at pornography.
I have tried this once before (IIRC I lasted around 10 days) and my mood and energy level went through the absolute roof!
BTW, whenever I get the urge I do the same thing as you, pushups, pullups or dips.