
I beg of you!
Please! / Make sure you... / Don't forget... / For goodness' sake

Mi raccomando! 
Please! / Make sure you... / Don't forget... / For goodness' sake

Mi raccomando! 
Meanings
To plead with someone for something with a certain intensity
Examples
Please, I beg of you, call mom as soon as you get to the campus
Mi raccomando, chiama mamma non appena arrivi all'universitÃ
Make sure you won't be late! You know how much I worry when you are late at night
Mi raccomando non fare tardi! Lo sai che sto in pensiero
Don't forget to stop by the cleaners and pick up the dress I'm wearing tonight at the reception, pleeeaase!
Ricordati di passare in lavanderia, mi raccomando! C'è il vestito che devo mettere questa sera al ricevimento