My water bottle is important, to stay hydrated of course. Sometimes it’s water, sometimes it’s a hydration drink so I can go longer without drinking.
My sunglasses are pretty important here in Abu Dhabi, where the sun is shining almost every single day! It’s nicer to have them on, and it stops you from getting a headache.
My note book is for driver notes: from the track walk, and during the weekend I use it for all notes I need to make about anything, and they stay with me so I can go through them any time.
My phone is the same thing: it’s for notes, videos, pictures, to stay in touch, for social media, all the important things!