How to remove a stain?

I left a wet, tarnished copper-bottomed pot on a bright, unfinished aluminum cookie sheet. The aluminum now has a medium to dark grey circular mark on it. The dishwasher did not remove the stain. Dish soap did not remove the stain. A micro-abrasive sponge...

My bag had an ink stain on the lining and my perfume leaked. My Kindle has now got a minute ink stain on the back of it. I know I need to invest in a case, I shall. But how can I remove it? I've tried "Stain Devils, Ink Remover", white spirit...

hey i work at a ceramic factory and we make ceramic objects like ceramic logs and brick paneling. and how it works is there is a tank full of water and ceramic fiber so its pretty much water in the tank but has ceramic fiber mixed in with it and that...

I have a sky blue hoodie that had a 2 in. piece of BRIGHT yellow paper in the pocket. I forgot to take out the paper so when I put the hoodie in the wash, the yellow dye got onto the pocket and I then unknowingly set the stain by putting the hoodie in...

I'm currently working on a cross stitch design on Aida fabric. The picture is nearly finished and I've noticed a stain on the fabric right next to the stitches. I want to frame the picture and the stain would be seen through the glass as it's so close...

My dog peed on the leg of a settee that sits on a very expensive cream-coloured wool carpet. To make matters worse, it's not mine. I've managed to remove most of the pee but the pee itself caused the leg of the settee to leave a heavy rust stain. It...

I put a green color fabricate on my granite counter top for a long time. The green color stain the granite. Is there any solution I can use to remove those green stain? Where can I buy the solution? Or I need to hire contract to remove the stain?

I've tried several stain remover the next day too plus still can't remove the stain..... :(

I had a freshly made, full mug of coffee on a coaster I'd placed on the hardwood floor next to me as I sat on the rug and played my guitar. I neglected to close my door when I dashed downstairs for a moment, and when I came back up my stepmom's dog was...