Our friends at Pantry Paratus carry an awesome gardening tool. I'm calling this a tool, not an accessory, because it really is that functional.
The video explains it best:
Paul thinks it's for people who are overalls deficient. I often wear skirts or things without pockets, so this is a huge help. When I wear jeans, I typically put my phone in my back pocket to keep it with me, but then I'm constantly removing it to sit down. Again, the Roo is far better.