I’ll second the charger. I recently bought the Shargeek Storm 2 battery and bought their recommended charger (100w GaN) on a lark. This turned out to be much more useful than the battery itself (although the battery has been great too).
I’m able to charge MacBook, iPhone, Watch, AirPods all from one brick at the same time, which means I only have to carry one brick.
I will say, I don’t believe it will charge at 100w on the main port when other ports are in use, 100w is the max across all ports. Still, I’m considering purchasing their new 140w option now to take full advantage of MagSafe.
Anker/Soundcore Motion+ bluetooth speaker, even though I use it at home as a soundbar for my computer. Sounds way better than others I have, like the much larger Sony SRS-XB43.
An actual linear tracking mouse and config. The ASUS/TUF M3 wired has the right size/symmetry for my hands. The config software can be used specifically for programming the DPIs and doesn't need to be installed.