Hi! My son and his fiancee are thinking about putting out little bags of homemade caramels as wedding favors. Does anyone know how far in advance we can make and wrap these and still have optimum freshness? It is time-consuming to cut and wrap them, so we'd like to get it out of the way ASAP. It's low humidity and somewhat cool right now, so that's in our favor. I just don't want them to be greasy or gritty when the time comes. Also, should they be refrigerated, or will that contribute to textural problems?