I am also a pocket fiend. Everything must have pockets. My good work button-down shirts have breast pockets, however, the most I put into them is my badge and/or a folded paper money. But they're there if I *really* needed them.
All of my pants are made by me, a comfortable linen blend, and have POCKETS. When I sang with the Sweet Adelines, even my competition gowns had a pocket - where else would I carry the pitch pipe?
Vorfemme, I made a pair of these once for my sister and brother-in-law, the Olympic-caliber shoppers: http://www.thegreenpepper.com/product/502-rogue-river-fishing-vest/
Green Pepper patterns also has a hunter's vest with lots of pockets. Something to think about for craft fair shopping, I think.
My favorite plus-size designer also puts pockets in *everything*. http://mylesahead.com/
Yes, her clothes are pricey, but I'm still wearing the stuff that I bought nearly 15 years ago. It's good quality, fits well (on me), and looks really good.
Way back when my nieces were 4 years old, they told me that they wanted prom dresses with pockets. They're 16 now and I don't know if they still want them, but if they do, I'm ready. I am willing to try to put pockets on, or in, anything.
That all being said, I still carry a huge purse and tend to only use my pockets for some essentials. They get a little uncomfortable sitting down if they're full of stuff, and I constantly worry about damaging my phone.