Reddit mentions: The best usb warmers

Hehe, I got these as a gift one year -- they are my best friends.
USB Toasts

For feet I have these Smoko USB Foot Warmer

For hands maybe this would help you: Smoko Toast USB Handwarmers

Mittens are typically warmer than gloves.

Zippo hand warmers

Electric hand warmer if Zippo scares you

Here is the perfect solution for you ;) $21

Mini Fridge Warmer and Cooler USB Powered for Soda Cans Beer Beverage Drink in Car Home office Cubicle - Black https://www.amazon.com/dp/B06XHR537C/ref=cm_sw_r_cp_api_-xCMAbRBTT2V8

Maybe he means these:


Unisex USB Heated Gloves Mitten Winter USB Powered Knitting Heated Laptop Gloves Half&Full Finger Mittens for Women Men Girls Boys- Best Winter Gift Choice (Men's Grey) https://www.amazon.com/dp/B07JW6LCNK/ref=cm_sw_r_cp_api_i_jH80Db1G6G77H

I personally like USB-powered fingerless gloves/hand warmers. Some are also stupidly cute with the additional warmth from USB power.

Link to item - review is first and of course best review. https://www.amazon.co.uk/Mustard-USB-Cup-Warmer-Coaster/dp/B00A3A02SC/ref=sr_1_1?ie=UTF8&qid=1512020626&sr=8-1&keywords=mustard+usb+cup+mug+warmer+coaster+-+dark+brown+hot+cookie

Hmmm! You might try some fun desk ephemera? A headset holder? A usb drink warmer/cooler? USB TOAST HANDWARMERS.

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Those really do exist: https://www.amazon.com/Warmers-Fingerless-Heated-Typing-Mittens/dp/B07BHTLG69

What a world we live in.

Yes, that is the style I use. But if you are feeling silly Smoko Toast USB Wireless Handwarmers Butta https://www.amazon.com/dp/B00JX072N6/ref=cm_sw_r_cp_apa_i_GS45AbQVGJXDW

Well then, you may want one of these. I'm getting myself one before NaNoWriMo starts for serious marathons. It won't brew your tea, but it'll keep it warm!

Similar shit with high-powered kettles.

You want your kettle to boil fast. This minimizes heat loss from the surface of the kettle. To take it to the point of absurdity, if you keep dropping the power output of the kettle, you'll eventually end up with a product that can't even get the temperature above 50^o because the rate of heat loss exceeds its wattage.

The ideal would be a device that instantly heats to boiling only the water you're using, not the devices we currently have that heat an insulated tank. But that's a pretty tall order from a domestic power supply - even with a 100% efficient heater, for a 250ml cuppa you'd have to dump 94kJ of energy into the water over the 5s or so you spend filling the cup. Not too many 19kW appliances in the home (about the energy output a car needs to go 50 mph).