Well, we can say N >= 2 with confidence. I carry items in assigned pockets of my trousers/pants and jacket too, and it's such a habit that my clothes don't feel 'right' on me if I'm missing something.

My backpack carries way more than it's reasonable to carry in clothing, even if you're wearing clothes specially-designed to carry stuff.

And I thought it'd be useful as a tip for people who don't like to wear men's clothing or who want to keep less stuff in pockets for style reasons. You can't fit as much as I carry in my pockets in high-fashion jeans.