Yes, I do 'overpack' when I travel !!! Diabetic Dancia says to 'pack your supplies like you would have to change your pump everyday"--then if you don't that is fine--you will have enough to safely 'enjoy' your travel time without having to worry about whether or not you have enough. I have been on a 5 week road trip, I packed enough pump supplies to change my pump everyday if I needed to. I also had 2 vials of insulin with me.Also I carried my backup long acting pens--Lantus, plus cartridges to fill my pen for my fast acting insulin, AND syringes to use with my vials of insulin in case I needed to use that, PLUS glucose tabs, and extra snacks. I have not had to worry about anything, also I carry an Frio pack to put my insulin in while I travel when it is hot, and it worked great!!! Also I carried back up batteries for my backup meter, and had 2 lancets with me--one stopped working and I bought another one--always have 2 in case one fails.