9 items in this article 2 items on sale! Photo-Illustration: The Strategist; Photo: Charlotte Hadden, Joe McKendry If you’re like us, you’ve probably wondered what everyday stuff famous people add to their carts — like hair spray or an electric toothbrush . We asked Lena Dunham — whose memoir, Famesick, comes out tomorrow — about the crystal mat, anti-productivity book, and made-in-the-USA mouse figurines she can’t live without. The infrared mat she brings with her to set Saved View Want to be