I was parked up in a cul-de-sac the other day waiting for someone and looking round at the houses. I noticed that of the twenty three house all had Upvc windows. Different to when I started when it was all wood and putty!! This is why dog-earing, Wagtails and liquidators are so necessary today, to get that edge, and why, in the "olden days" an ordinary squeegee would be fine. Don't get me wrong... I'd rather have the Upvc!!