Smith and Wesson Mountain Bikes. Life Savers Soda. Colgate Kitchen Entrees. Arch Deluxe. Cats: The Movie. Supertrain, Pink Lady (and Jeff). History is littered with historic flops and bad ideas. When it comes to retirement plan design, plan provisions don’t look like such a bad idea as a toothpaste manufacturer selling ready-made meals. Based on my 22 years in the retirement industry, numerous plan features can land you in a whole lot of trouble as a retirement plan sponsor because it creates unnecessary plan errors. So this article is about trying to inform you which retirement plan provisions are bad ideas that you should avoid.