5. Phone Screen
Anyone who owns a smartphone knows that terrible feeling of looking at your phone…and seeing a horrible scratch on the screen. Save your panicking and instead grab yourself some toothpaste! Rub toothpaste onto the phone crack with a cotton ball for about 10 minutes and it should help to repair the scratch.
If you don’t have toothpaste on hand, try baking soda or vegetable oil for the same purpose.
6. Leather Couches/Shoes
Leather is a beautiful material for clothing and furniture, but it’s extremely delicate when it comes up against potential scratches. (Anyone who dares have a leather couch and a dog at the same time will know this struggle.)
Try taking some vegetable or baby oil, and applying it to the scratched surface using a cotton swab. Rub the oil into the surface in circular motions, and then allow it to dry. Wipe the oil residues with a clean cloth. If necessary, repeat the procedure.
Nail polish, as well as specialized leather wax, can also help fix the problem.
7. Plastic Surfaces
Did someone throw their feet up onto your car’s dashboard, scratching the plastic surface with their shoes in the process? After you’re done telling them off, go back inside and grab a regular old blow dryer to fix that scratch right up.
Set the blow dryer to minimal power and direct the stream of hot air along the length of the scratch. If necessary, increase the temperature until the marks begin to disappear. Wait 10-15 minutes, then rub down the surface with some car polish to render the scratches totally invisible.
8. Marble Surfaces
If you have marble countertops (or maybe marble floors or walls, if you’re really fancy) seeing a scratch on this gorgeous, expensive surface can be painful to see. Rather than replace the surface itself or ignore the problem, use this really simple tutorial to get the scratch out in no time at all!
9. Wooden Surfaces
One of the most popular surfaces in any home is likely wood…which means it’s one of the scratches you’re most likely to come across. But whether it’s a tabletop or hardwood floor, there’s a surprisingly simple solution: a walnut kernel.
Try rubbing half a walnut shell (or a pecan, if you don’t have any walnuts) over the scratch on a wooden surface. Then prepare to watch in awe as the “gap” in the surface is filled right in with the “meat” of the shell!
If that doesn’t work, try using diluted iodine or even mayonnaise to fix any wooden cracks.
From: http://tiphero.com/scratched-surface/