[rocky_raccoon]

I would love to find one of these that does the opposite -- provides heating instead of cooling.

...also known as... clothes, I guess?

[ytjohn]

There's actually quite a collection of heated clothing, which is much easier to make. Milwaukee, Dewalt (and probably all the big power tool makers) make heated jackets and vests.

[qup]

This one does heating.

[hackeraccount]

Insulation plus the power of endothermy can do a lot.

[fragmede]

yeah. the worst thing about moving from Boston to California wasn't the first winter, but the second one, where my body had forgotten how to deal with mild cold.

[ajolly]

This does both heating and cooling.