In terms of being tidy, he's not. At all. Break's a bit of a ginormous slob. He throws his garbage everywhere, never cleans up after himself, leaves his clothes on the floor and papers scattered everywhere, etc etc. Partially, this is because he likes watching other people get mad and clean it up for him.
Personally, however, I like to think that he takes care of himself fairly well. In the morning, he'll go through the whole thing. You know, brushing his teeth, shaking out his hair (he doesn't really do much with this) etc etc. He'll have showers every day, for the most part. Sometimes he gets lazy and skips. (They have running water so I'm assuming they have showers too.) He's too impatient for baths though. Most of the time he bathes in the evening though, either because he can't sleep or because it either relaxes him or wakes him up, depending on the time of day. For a while, the empty hole in his head needed to be tended to, but it's all healed now, so that doesn't matter. Oh, but he has a bad habit of picking clothes off the floor to wear. He won't wear anything if it's visibly dirty, but then again, he's not one to fuss if he's worn the same shirt for the past week and a half. I also think, that because his body stopped aging, his hair's stopped growing too. Therefore, he doesn't have to shave.