All the techniques I've used are posted: 3M tar/adhesive remover, degreasers, clay (doesn't work too well). My favorites so far are Greased...
For the inside - Number one rule is to make sure you're cleaning your glass when it's cool and in the shade. Hot glass will evaporate the liquid you...
I have used Griot's clay bar for several years and have never been disappointed. It is milder than other bars, he claims this in his advertising....
This works for me On painted surfaces try polishing it by hand, usually takes it right out. For other surfaces I use Griot's Garage Interior...
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