I was idly cleaning my teeth the other day and it occured to me that I happened to have chosen a specific brand of mouthwash based on a sponsorship from 20 years ago (Listerine's sponsorship of BMW in the BTCC if you're interested). This probably isn't the sort of slow burn that the advertisment was intended to attract but it did get me wondering if other people have found themselves falling for marketing years after the actually advert was around.