Her immaculate public appearances suggest Kate Middleton spends a lot of money on her wardrobe.

But it seems that just like every other female in town, the pretty brunette can't resist a good bargain.

Prince William's girlfriend was spotted trawling through rails of discounted designer clothes at bargain-hunters' paradise, Bicester Village, this week.

Casually dressed with her mother in tow, the 28-year-old went marginally unnoticed as she enjoyed the spree and tried on a pair of glamorous spike-heeled black boots.

"I couldn't believe it was Kate Middleton when I saw her, but most people didn't seem to recognise who she was,' one onlooker tells the Daily Mail. 

"Everyone treated her totally normally - but then she looked quite unremarkable, just like another posh girl who had come to get some bargains."

Photo: � Rex