Do a little math and you’ll see that in normal use, a bottle full of carbonated water runs you 49 cents. Aerflo says that’s about 50 percent less than buying commercially available seltzer.

The seltzer bottle’s protruding nozzle beckoned me – dared me to try. But seltzer is for bubbies and zeidies. Kids don’t touch the stuff. I accepted my dare and bravely pulled out the ...

A: A good start. And [Dan Rojas]’s low-tech mosquito trap accomplished the feat in two nights with nothing fancier than a fan and a bottle of seltzer. We know what you’re thinking ...