Karcher wv60 window vacuum only £45 at tesco groceries. Been after one of the wv50s to get rid of condensation was unsure of the quality but have spoken to a few people and read reviews seem very good. Wv60 is the same with extra attachments
Can also be combined with £15 worth of other goods to receive further £15 with one of the various codes such as XXRHFL for first time customers (or you can set up a secondary account)
So if you buy £15 worth of groceries that you usually buy you could get this product for just £30!