getting glass CLEAN, how do you do it?

[Phaedros]

Anyone ever tried Rodico? It’s what watchmakers use to clean highly polished surfaces. Kind of a putty designed to wipe up oil and dust... perfect for fingerprints.

[maltfalc]

TSP to start.

[Drew Wiley]

TSP is illegal to pour into drains due to the relation between phosphates and algal blooms, and is illegal to even sell in this state. Most "TSP" is now actually metasilicate if you read the fine print on the box. Cerium oxide was once recommended as similar light abrasive on glass. I just use the softest level of white Scotchbrite pad for that, instead of messy powders.