For a girl, I'm quite mechanically-minded.
My sat-nav charger wouldn't fit in the car cigarette-lighter socket drawer. I got the front off the drawer.
But then, oh horror, it wouldn't charge at all. I am stupidly proud of myself for thinking of checking the lighter fuse under the dashboard. The fuse was missing - which means it's being missing for over 6 years, since I never accessed that fuse board before.
£1.50 well-spent, I'd say. The sat-nav charging light is now lit up. Yeah! This means I can go out to unfamiliar territory on Monday morning, and there's a good chance I'll get to everywhere on my list and then home again safely.