I got hold of Crazy Busy by Kevin Deyoung last year but was too crazy busy to read it, although I did manage to read his book Taking God at his word (though not hole in our holiness which has been hanging around the house too). Anyway having met Mr Deyoung the other week I was stimulated to get CB read (my wife also has a copy uncompleted). I know you've all read it but I don't mind being late - I was often last boy out of school as child.
The book is pretty free of earth shattering new ideas. One book he footnotes is Ordering your private world which I remember reading years back. (I'd never heard of Tim Chester's book on the same subject). There are helpful things here on pride, using the Internet and not resting (not really my problem although the way things are no longer divided up day/night, work/leisure, etc, set me thinking). What he says about not getting too worried about your kids I'd already worked out a while ago I guess but then I am at quite a different stage to young Kevin with five (now six) kids still at home and some of them in diapers/nappies. (He also has a church of 700 so there's not much the same at all in our lives). I thought the final point about getting the quiet time right was well made. If you are busy and haven't found time for this book I would recommend it.