Unfortunately the backing on bath mats and other throw rugs can have a chemical reaction with your flooring causing stains. This is a page about removing throw rug stains on linoleum.
This is a page about cleaning mold on vinyl flooring. Mold can grow on the underside of vinyl flooring or near the edges, often due to moisture.
Mold will stain just about anything it grows on and linoleum is no exception. Check out these ideas on how to remove mold stains from a linoleum floor.
Oven cleaner uses very strong chemicals to breakdown burnt on food and stains in your oven. Removing oven cleaner stains from floor can be a difficult chore.
Depending on the type of flooring you have this stain can be difficult to remove. This is a page about removing a PVC purple primer stain on a floor.
This is a page about cleaning nail polish stains on linoleum. Removing stains from resilient flooring such as linoleum can usually be successful if the proper products and methods are used.
This is a page about dye from rugs stained my linoleum. If dye in a throw rug or carpet is not set, it could cause some staining.