Here's the information on stained glass vellum card

Glass can be located somewhere in most of our dwellings, it may be glasses for soft drinks, or glasses for strong beverages, punch bowls or flower vases. The marketplace holds many items that claim to be able to brighten up your glassware, however, you may find that many of these items are too coarse and cause scratching that has been known to spoil delicate items of glass. I have provided several suggestions to be of assistance in your glass items remianing cleaner and brighter by the use of merchandise that has better naturalness, rather than the abrasiveness of a small percentage of the industrial glass cleansing goods in existence.

Many people have reported having great results employing tooth cleaning paste on glass. I cannot give particular importance to any special type, therefore experiment for yourself.

Don't clean your windows in sharp sunshine. The windows will be dried out faster than you would like, and a streaky nature will be visible. Hold off until the day is less sunny and you'll get better results.