I have read in many areas that people say to seal them in a air tight container ... I was always told not to cause they will get soft that way... have you found that to be true with the way your doing them???
No, Victoria. Once they are dried, they won't go soft if they are not exposed to moisture nor grease. You have to make sure they are completely dried for like a week with air circulation around them and low moisture (if any). Then you can seal them up and save them for a long long time. Our teacher said she keeps hers about 3 months, but she thinks they would last longer. Don't refrigerate them, though, because they can get more moisture in that way if the container isn't sealed perfectly. You will need to fridge or freeze any buttercream flowers you do in advance, though. I have to keep those straight!
Aha! That is what I should do with the extra frosting I have!