I go hiking nearly every weekend, and usually (almost always) bring my rain jacket and pants. I store them in a stuff-sack in my backpack. I air them out after hikes if they are used. I was thinking about getting a compression sack to store them in, to take up even less space.
I've read that it's normal for Goretex (or equivalent) to wear out over time, as well as the waterproof impregnation of the nylon exterior. Does it wear out more quickly if rain gear is stored in a stuff sack i.e. squished up into the smallest possible space?