I ordered some highly recommended adhesive from amazon a couple days ago and it finally arrived. The OpSite Flexifit is the best option if one wants to wear their Dexcom sensor for more then the recommended 7 day time period or if your sensor adhesive is not sticking well to your skin. I bought the 2 in wide, 11 yard long roll, so hopefully that will last me for a long time. This adhesive is widely used by hospitals and other medical personnel for procedures because it is transparent and sticks to skin (which can get oily/sweaty) very well. When I was in the hospital for my DKA, they used some of this adhesive to secure the IV leads onto my arm.