We didn't have that kind of thing when I was 18 in the summer of 1972. We did our own things with our friends though and at that time I was joining them in a student-type pub where people drank cheap cider and Barley Wine or scored weed and acid.
That summer I was wearing boho maxi skirts, Indian cotton embroidered tops, vintage velvet jackets, loads of Indian silver jewellery, pale Almay foundation, black eyeliner and a very dark purple lipstick (I think it was Black Tulip by Biba, which was sold in Dorothy Perkins). My scent would have been Patchouli Oil or Intimate by Revlon for a special night out.
My footwear was Dr Scholl's wooden sandals or over the knee lilac canvas boots (again by Biba I think). My handbag was home-made from scraps of leather and suede with a long plaited strap and fringing on the bottom.
Other possibilities for a celebratory night out that summer included a vintage bias-cut 1930s black crepe dress, a home-made black chiffon maxi dress (think Morticia Addams) and a home-made full length, gold velvet coat (Regency Style) with frogging fasteners. I also had some Edwardian lace-up short boots.