They’re back, three Sundays from today, on April 7th.The preview photos just released to tease us, show women still O.D.’ing on cheap, Ozone-killing cans of hair spray. The worst offender once again is Peggy Olson with her stiff and spinsterish Dear Abby/ Ladybird Johnson do. Outside the world of Sterling Cooper the Age of Aquarius is dawning and I’m waiting to see some hippie chick hair and summers of love bellbottom/mini skirt style this season. Of course, Peggy’s taste has always been suspect. Remember, this is a young woman who not only slept with Pete Campbell in Season One but had his baby. Note Campbells puny sideburns to mark the march of time.