For years I believed the hairdresser hype, paying 300-odd quid a visit for a full head of highlights, cut (which had to be a blowdry, salon rules). I couldn't really afford it, and couldn't afford to tip - it used to be nigh on impossible to get an appointment, and I never made the link between not tipping and my stylist always being 'busy'...
The cut used to drive me mad because the stylist felt obliged to take the full hour, despite it behind the simplest straight across with a fringe. Between the highlights and the cut, it was a full afternoon. Oh, and they charged for fringe trims.
Stylist always maintained it wasn't possible to get a decent blonde with an all over tint (home or salon), highlights were the only way, obvs because he made the most from highlights.
Final straw came when I was charged £2.50 on top of the 300 for a cup of (instant) coffee.
A lot of deep googling later and I'd taught myself about hair colour shades, ordered some professional colours and started doing it myself... and it actually looks better because I don't get the black roots while I'm waiting for an appointment.
Cost? prob around £6 a time.