I once saw a tradesman using a couple of Setwear pouches so I looked them up and bought a couple of different ones. Here's the one I use most often for quick jobs. As you can see it's not perfect but I've never lost a tool either. I like being able to take it off my belt when I'm in a tight spot and can't reach my hip easily.

https://setwear.com/collections/pouches/products/utility-pouch

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