Speaking of bags, thought I'd share my absolute favourite (along with a little how I use it). It's the Thule Subterra 25L Backpack, and I've missed using it since my uni converted
Thule Subterra 25L Backpack OutdoorGB
Thule Subterra 25L Backpack at Luggage Superstore
Thule Subterra 25L Review | Pack Hacker
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Thule Subterra | Thule | United Kingdom
Thule Subterra Backpack 25L | laptop, hat, bicycle | Thule Subterra Backpack 25L Commuter-inspired backpack with expandable, quick-access compartments and dedicated protection for a 15" MacBook® plus... | By Oribags.com | Facebook
The THULE Subterra Backpack 25L is one of our most convenient backpack suitable for your daily commuter adventure. (Now on 𝟮𝟬% 𝗢𝗙𝗙!!) Comes with... | By The Planet Traveller | Facebook