そう言えば
Usage
That reminds me; Now I remember; indeed
Examples
そう言えば、昨日、お腹がいったて言ってたよ。病気かもしれないね。
That reminds me of yesterday my stomach ached. I could have been sick.
あっ、そう言えば、明日は母の誕生日だ。忘れてた！
Ah now I remember tomorrow is my mother's birthday. I forgot it.