Here you will find some generally accepted guidelines for selecting an area rug that will fit your space well and perfectly accent your living area but do keep in mind that personal preferences should trump any type of rules put forth by the rug industry or interior designers.
There are other kinds of small carpets like rag braided sisal chenille and shag made of various kinds of materials like cotton silk leather wool and synthetic fibers. You can get area carpets for children with games and bright children's designs on them. You can get bath mats that are washable.
Specialized usage rugs. Bath rugs or mats take their place beside a bath tub or shower to prevent slippage when stepping out of the shower enclosure. Bath rugs must be constructed of a material which is cleanable or even washable as otherwise moisture soap and bacteria are trapped in the fibers and may lead to disease. For this reason the rugs in the kitchen or bath and sometimes a hallway or stair rug is general a discount area rug.