Elegant One, your collection is so amazing. I am not worthy. I am not worthy. I fall at your feet. I only have 18 boxes of makeup (about shoe box size), all inventoried and organized by color and type - i do still have some i've "museumized" from the 60s and early 70s - including some Biba and Mary Quant.
As for backups, here's a list of ALL the BUs i have (just one BU of each):
-- Forever Marilyn Beauty Powder
-- Go for It lipstick
-- Aristo-Cat lipstick
-- Firm Form lipstick
-- Flaunting It liquid lip
Back in the 90s i accidentally ended up with two L'Oréal Colour Riche Lipcolour in Mica, which is a frosted medium taupe mauve. But I only wanted one.
I think i'm probably older than you, Richelle. I was born in 1949.
I got a Barbie when she was first sold - sadly got rid of her long ago.
And, yes, that Max Factor shimmery lime green loose powder eyeshadow from 1962 (or was it 61) still works. My mom hated it - but then she never wore eyeshadow ever - she said it looked like i was recovering from a black eye.