Things I never get right on the first try

which direction the USB plugs inhow to spell ryth—riththm—rhythym—rhythm the proper remote for DVDsEpitaph vs EpithetBob Seger vs Pete SeegerParsnips vs RutabagasOdin vs OvidAver vs Avowwhich car is mine in the grocery store lotwhich button opens my trunk

What about you? Anything make you work twice to get right?