I have a deal with the missus, every second week I get out in the bush on the dirtbike.
It really helps to take my mind off dealing with the kids and life in general.  Focusing just on riding for 5 or 6 hours and a good adrenaline rush whilst I'm at it.
It ends up being like a drug, if I miss out one fortnight, the next fortnight really drags, and the missus can see it and understands I need some man time, really clears my head