¿Cómo se dice "by the way" en español?

Question

¿Cómo se dice "by the way" en español?

Answer 1

"a propósito" is another way to say it also.

Answer 2

¡Por cierto!

• I thought "por cierto" meant "of course!" Does it have this meaning also? - mggabriel Jan 25, 2010
• I believe "por supuesto" would be "of course" but let's hope a native will straighten it out. - Yeser007 Jan 25, 2010

Answer 3

a propósito