CELEBRITY BEAUTY CHEATS:  Roots are the bane of my life. I'm probably happy for about three weeks following my hair being coloured and then it goes swiftly downhill, until I resort to wearing an assortment of hats and scarves to hide my hideous regrowth.  So, you can imagine my excitement when I found out about celebrity colourist Oscar Blandi's Pronto Colore Root Touch-Up and Highlighting Pen.  This ingenious tool temporarily disguises roots with a professional, natural looking finish and stays put until shampooed out.  How fabulous is that?  I chose the Beige Blonde, which matched my colour perfectly.  Roots?  What roots?  I'm a natural blonde, don't you know.