By Bethan Shufflebotham Dear Frankie Bridge, I see your ‘dressy knit of dreams’ and raise you one that’s £20 cheaper and looks more expensive. Last month, Loose Women panellist Frankie Bridge posed on Instagram in a suitably seasonal outfit, pairing a glam cardigan with some on-trend metallic trousers. Her River Island Cream fluffy embellished cardigan cost £55, and left shoppers swooning over the festive fit. Made in a mohair-style fluffy fabric with diamante embellishments in two different sizes, Frankie predicted it would sell out, commenting: “The dressy knit of dreams! Such a cute little …