Which car glass cleaner do you recommend?

I find vinegar based sprays leave the windscreen with smears and have tried several different products. None comes anywhere near as effective as a cream you once recommended which is wiped on, left to...

How can I get rid of adhesive residue on the rear windscreen of my car?

I bought a used car but when we had a very cold snap I noticed that there was an issue with the rear windscreen. It seems the previous owner had run a mobile disco and had put a huge advertisement over...