For a vacation outside of Canada and the United States, electrical adapters are ideal in order to use your hairdryer or your cell phone charger.
This is a tricky one, because women use hairdryers and hairdryers use electricity and I want to be fair. I'm using a hairdryer now, as I type my spleen.
The mere rhythmic drone of a photocopier or the rumble from a hairdryer is enough to set her off.
The hairdresser habitually hangs the hairdryer on the hanger.