Yup, proud backpack guy here.
What do we bring?
EVERYTHING !
Book (rn its 'Epitaph of a Small Winner), laptop, laptop charger, knife roll (you never know), headphone, charger for my headphone, charger (plus block) for my phone, headphones for my laptop (ask me abt this im very specific with headphone usage), my smokes, matches (again, you just never know), chapstick, my sunglasses, an extra pair of socks (ynk^3), three pencils, and a pen.
Stay ready so you never have to get ready.