Seems to be a hell of a lot of Japanese living around Narita. If your wife wants to work, why do you?? I find moving house and/or changing the locks whilst the kids are at school usually takes care of them. How much is food???..... How much do you eat?? I usually sleep at home once a day( and almost always at night time).
There's almost 18 pages of this stuff.. a quick search will answer all your questions. That way you won't get a smart arse dingbat like me answering!!