With my ds numbers being so random we went through more supplies than usual, and might run out before they ship is his stuff. I want to buy extra supplies so that we don't run into the problem that we had this month, not that we're having an issue yet, I just prefer to be prepared. There's enough going on that I want to take care of the things I can so that when unexpected things happen I don't feel as overwhelmed. Just want to know where the best and fairest prices are. He's on a tslim pump and inset cannula.