I try to cut back each month, though usually fail
as there always seems to be something that runs out, needs replacing, don't have an outfit for etc...
Skincare, hair and makeup- up to £70 a month, usually around £50.
I use a mixture of high end and high street beauty products (REN,loreal,una Brennan, clarins, atm- try cheaper products and stick with if work), makeup is a bit dearer (Eve Lom foundation, Estée Lauder, some benefit but also maybelline, rimmel, loreal etc too)
Hair- I've found a great local hairdresser for a reasonable £35 for a cut and blowdry, happy enough with that.
I do my own gel nails and facials, so spend on threading every 2 months (cheap booth in shopping centre) and chocolate bikini wax £15 (bit dearer but much less sore)
Clothes I try to cut back but usually end up spending about £100 (too much). I also seem to need a new bra, plain tshirts looking tatty, always "something" every month. I avoid internet shopping these days and try not to impulse shop.
I am not going into the red to spend this, but should be saving more/paying down previous debts etc.