Weed
For almost everyone it’s gonna be the phone we’re reading this on.
Toilet
Poop, pee, and in a pinch: hand washing and hydration.
The manager likely thinks it’s him, but it’s actually all the workers that do the work.
I’m in my car.
The car.
Same, might say the keys.
I’m in the ER. Probably the doctor standing directly in front of me.
Laptop probably. Linux, tmux, i3, vim, GCC, GDB, Pdb, gplaces, links2, curl, wget, netcat, awk, sed… what more could be needed for happiness?
Kdunno, but it’s preloaded with shittons of tools I don’t even know the use of yet (thanks kali). Excluding that probably my lensatic compass. It’s nice, quite cheap and not magnetically dampened but it does the job.
Me? Unless I’m excluded, then the laptop. Although the room itself is pretty useful, but I don’t think I consider it “in the room”.
Air. Can’t go more than a minute or two without it, and there’s enough to share!
Phone
Pumpkin spice old fashioned. With real pumpkin puree!
A 5gal jug full of water. (I don’t have AC and it’s 32C/90F inside)
Home server.
Depends on the situation.
Currently? 40 pound box of cake mix I’m probably going to launch at my store manager.
Is it the 40 pound box of cake mix that kills? Or is the the person hucking the 40 pound box of cake mix?
Most useful? Without a doubt, my laptop. The amount of things that can be done with a modern computer is pretty stunning, and a portable one is arguably more useful.
Other than that, maybe my car keys because the amount of things you can do with a car is stunning, but you need the keys to start it, and the car isn’t in this room.