Sweet potato storage?
My parents stored them for months.  Sort them removing any damaged or bruised ones and eat those so that you are only storing ones that are not likely to rot quickly.  Get a large box - even a cardboard box.  Put a layer of fine sand, place the sweet potatoes then cover with sand and put in another layer.  Do it gently so you don't bruise any.  Exclude light, allow to breath, keep in a cool area and remove only those you want to eat.  I am trying to find the source of this method of storage - my grandfather was from Ireland and he used it.  My father says it was English when they had walled gardens.  We used it in Africa and I remember the sweetpotatoes storing for months.