May I ask how the community manages their insulin when travelling? I have a cold wallet to take me fridge-to-fridge, but that only works when there is a destination fridge available, and only for 2-3 weeks max. What do you do when you want to have an extended holiday? Is there some techo-gizmo that I don't know about which will keep spare insulin cold and can be recharged a-la mobile phone? Any other travel tips would be welcome...