If your garden office is still not entirely paperless, perhaps this will help a little. It's a ceramic notepad from Yoyo Ceramics. It comes with a special waxy pencil which easily wipes away and you can buy red, blue and yellow ones if you get tired of black. Comes in any size you like as long as you want it approx 15cm x 21cm x 1.5cm. And unlike your moleskin notebook, its dishwasher proof.