Pack your back.
If you ever bring a laptop or similar contraption around, you really need a proper bag for it.
It seems like the kind of thing where you could get away with using whatever you happen to have lying around, but it turns out that it’s super nice to have a proper electronics bag with all the sleeves and pockets and pouches you need to keep your stuff where it belongs.
With this bag, you get the laptop spot (which is big enough for a 16” MacBook Pro) plus all sorts of secure little places for things like phones, chargers, powerbanks, etc. Basically, it keeps you from carrying around a haphazard bag of nonsense that you need to dig into like Mary Poppins every time you need something.
No, all your stuff will be right where it belongs, easy to get when you need it and not leaving your scratch-prone electronics dragging against each other as you move around. Plus there’s 20 liters of capacity, which always seems like an odd way to measure bags but gives you some idea of how it compares to other ones, even if you don’t plan on using it to tote a 20-pack of Pepsi bottles or something.
Just get yourself a proper backpack. The laptop bags with the shoulder straps make you look like a corporate stooge and those canvas tote bags scream “substitute teacher” every time, no matter how sassy the wording on the side might be.
20 liters!