Wear shoes that were made out of plastic.
Swearing was not allowed. The worst I ever heard my mum say was 'bloody' or 'damn.'
Chewing gum was tolerated, just, but bubble gum was beyond the pale for some bizarre reason.
I wasn't allowed to have my ears pierced until I was 11.
I was strongly discouraged from doing/saying or wearing anything my mum considered common, but apart from that I practically dragged myself up with very little adult intervention really, and could go out where I wanted, as late as I wanted, with whomever I wanted, not come home even, skip school, drink, have sex, and she barely noticed or cared. It was a weird childhood where outside appearances of respectabilty and class mattered a great deal, but other than that nothing mattered.