I do it in the shower in the morning. I come home for lunch and have a quicky. I do it in the bathroom after I get home from work. I get up in the middle of the night to do it. When I have a day off I might do it all day.
You might think I'm some sort of loser, or that I do it because I can't get a woman. Not so. I'm fairly well to do, married with two kids. I have sex with my wife 3-4 times a week. It's just that when I've gone more than a few hours without release, I start to get restless. Kind of like my brother gets when he has to go without cigarettes.
I prefer real sex. I would rather have sex with my wife four times a day, but she is not up to that, so I do what I have to do. When I have a mastubatathon I will sometimes be sore the next day, but I will still keep on doing it.
I have a porno tape collection of around 100 tapes. I get them cheap from the 3/$10 bargain bin at the porno shop, because I have a vast knowledge of which titles and distributors to trust. My wife knows about the collection, and knows what I do with it, but she doesn't know the extent of how often.