To have just got 'lefty Lucy, tighty righty'?

[passemoilevin]

Lefty LOOSEY! Not Lucy! I say it every time I'm unscrewing a screw. Never understood the whole Lucy thing until I just heard ant or Dec say it on IAC. Lightbulb moment!

Share your last similar ridiculously obvious realisation

[MiddleClassProblem]

Apeth here too! And an orangutan! With that ape call song chorus playing in my head...

[Ansumpasty]

I only found out it was 'all the rage' rather than 'all the range' last year.

Can't ever bring myself to say 'all the rage' as it sounds so wrong...