A super-heavy pen and a super-light knife, like peanut butter and chocolate.
I could tell you to JUST get the Gerber Zilch because it’s a joy to carry: razor sharp right out of the box, holds that edge and is the best pocket knife you’ll find for the price. But, if you just get the Zilch then you will miss out on the crazy contrast and heft of the Gerber Impromptu Tactical Pen. The weight of this pen makes the things you write feel more important, even the grocery list becomes more memorable.
Get ‘em both, you’ll be happy. I like the Zilch in red and the Impromptu in gray — Zilch $25, Impromptu $65.