Plastic utensils differ from silverware, because they are disposable. Their usage is only intended to be used once and once you are done, they go in the trash. Unlike silverware, you do not need to put them in the sink or dishwasher, because they are disposable and that might explain why you can not buy one plastic fork, spoon or knife. Keyword: Disposable. I am so bothered when I see plastic utensils in the sink or dish rack. Are you serious? I have gotten into arguments with my mother, because I would throw away her reused plastic utensils. I even think people take it too far with the plastic containers they get from take-out restaurants. I will agree that some of the more sturdy higher quality containers are good to keep, but not all of them. When I see plastic utensils in the sink or dish rack I throw them away, but seeing take-out containers calls for a talk. Please, stop trying to save disposable things! STOP IT! UGH!