kwt - on the days i do work (2 days a week), dh picks up ds at 6, home by quarter past.
ds has his milk, bath, books bed, 45 minutes in all (he sometimes has his milk in the bath). we don't see much of him on those days admittedly, but he is desperate for sleep before he even gets in through the front door, after a day at the cm! he is so shattered by then, that if we are slower on those days, he goes into meltdown with overtiredness.