We'd have been walking around marvelling at st elmo's fire coming off any point-contact junction between metal or exposed metal structure, with the most fantastic skies at night.
On the other hand, would allergy sufferers be marvelling at the removal of all the dust and pollen? This would be like the outdoors becoming a giant anti-static dust remover.
Primitive man wakes up, discovers can breathe through both nostrils...