A trivial thing I know, but what is the secret of sticking your new tax certificate on the vehicle's windscreen? The transparent backing supplied flops all over the place when trying to apply it and fails to hold the tax certificate in place. A few months later, after being exposed to the sun, it falls off. I've resorted to sticking it on with cello tape. I've just replaced last years certificate and had to use white spirit to get the adhesive off. Yes I know it's all silly stuff, but there must be a secret. ????????