I’m wearing blue and white.
I’m saying Hallel tomorrow with a bracha.
I’m saying the additions to Ma’ariv tonight that were sanctioned by the chief Rabbinate for Yom Ha’atzmaut.
We have food prepared for a major BBQ tomorrow. One of my daughters is making blue and white cupcakes even as I type this.
(Of course, I live in an area where everyone does this, not just me.)