I am definitely not precious about the materials I use to make my work, but every so often I find myself in need of something more specialised. L.Cornelissen & Son is a beautiful and well stocked art supply shop with extremely knowledgable staff.
This is one of my favourite parks in London. It's lovely to walk around it's like a forest in parts ... and there is a lovely Kyoto Japanese garden... and beautiful flowers everywhere! I definitely give it 5/5!