Ok as if I don't feel guilty enough for working, there's a study out today published by the Joseph Rowntree Foundation which says that working full time while your kids are pre-school increases their chances of psychological stress, unemployment and doing less well at A level. What should we do - all pack it in? Where are these mythical part-time, flexi-hour jobs that we have be promised so long? Is the government's policy of getting mothers back to work all wrong?