teeg : Sounds like you might have the generic version of Climara. I did too at first - huge, thick, pancake-like thing that doesn't stick well. 🙂 Vivelle is about the size of a dime (says their marketing), thin, clear, and stays stuck MUCH better. I only have to wear one at a time, but I could probably fit three in the space taken up by the old generic! Vivelle is more expensive, even with insurance, but so worth it to me.
Oh, and my doctor also recommended surgical tape over the top, as did many many women on the hysterectomy site I occasionally frequent (b/c they're taking the same meds I am in similar doses). The medicine is literally administered via the adhesive - meaning through the *bottom* of the patch - so nothing done to the top of the patch will affect absorption. And the manufacturers actually do know that it will fold/bend a bit; my guess is that if someone ever managed to get it so that the patch *never* flexed, they'd get a bit more estrogen than intended, b/c they're designed to deliver the intended dose while also taking into account that human skin is not a 100% still and flat medium.
(I haaaaate needles. Never ever. Besides, I'm happy with Vivelle; no complaints at all. It's also packaged for cis women but intended to be changed twice a week, so no fuss from my insurance about using my patches in an unexpected way, either. They didn't like that I was going through double the amount of generic per month as they expected.)