If by "water marks" you mean the residue left from rain or splashing tap water, then white vinegar is your best bet.
Apply the white vinegar to the glass, then wipe off with balled-up newspaper.
The water marks are most probably "scale" or lime residue left when the water evaporated, and the white vinegar will dissolve the scale off the glass.
Water stains can sometimes be the toughest to get out. If your furniture piece is made of cotton, its probably going to be a permanent stain. If it's a synthetic fiber like nylon or polyester use any carpet spotter.
You really can't remove a watermark off of a fabric unless you die the whole thing one color.
You can try a mixture of white vinegar and water to get white water marks off of linoleum. Use a scrub brush with the mixture to clean the area. If that does not work, clean the marks with toothpaste.
Yes, most of the dirt that gets on windows can be washed off with water. If you happen to have splashed bacon grease on your window, you will also need soap.
When washing or cleaning windows, one will need some clean warm water. One should add some sort of cleaning product or Fairy Liquid to the water, and use a clean cloth to dry the window off.
Mix a little bicarbonate of soda with water or white vinegar into a paste. Dab onto rust marks, leave about half an hour, wipe off, then wash crockery.
Use a mr clean magic eraser.
Any little marks on it from correcting fluid should be scraped off with a piece of plastic or wood so as not to scratch the glass. Then use an ordinary window cleaner, or vinegar, with newspaper and it should come up clean.
mr clean magic erasor
try a mr clean eraser
Finger nail polish remover
The best way to clean glass is with a vinegar and water solution. A 25% vinegar solution should be more than plenty. Spray it on, if you have a spray bottle. Most dollar stores carry them. Use newspaper to clean.
For a static window cling you just pull it off the glass and it leaves no marks. You can then just place it back in the paper to save for use another time.
Clean this off with water and a cloth rag or a brush.