In 9th grade I would text my crush from my mom's phone and would later delete the entire conversation since I didn't want others to read them.
I just wanted a way to save these messages in a way others couldn't read them.
We had just started to learn Java. I used the basics I picked from school to write a cipher program which would take some plain text, a pass key and generate encrypted text. Although, I didn't know at the time (but realized couple years later) that I actually coded a little extension of our age old favorite Caesar cipher.
This brought back so many memories!