This may not qualify as an earth-shattering tip for Tech-Week but last week got ready to install w/s and backglass in my 39 Chev, Could not find my old greasy venitian blind cord I had used for yrs Wife heard me cussing, came out to investivate, She went to the shed came back with a roll of weedeater line aprox 1/8 diam. Worked great!!!,probably the easiest glass I've ever installed!!