Pretty much the above post for me. I do it usually at least one right before bed. Every so often I'll go a day without, but most days it's usually at least one. Sometimes I'll do it even four, but buy the forth time I'm pretty much empty. I don't think I could do it past that as my penis might die on me.
I don't know why people tell me to get a life. I'm a gamer, I have lots of lives!