Bridge Designer · Stationery Reviewer
Plan intentionally. Engineer your life.
I'm Luis Duque. I design bridges in Rapid City, South Dakota, and on YouTube I review the pens, notebooks and planners I carry. I also design printable planner inserts.
The store
Planner inserts I designed, from $0.99
Ten printable layouts and two fold-outs, in A5, A6, B6, Personal, Pocket and Half Letter. Undated PDFs, an instant download after checkout.

Best value
The Complete Set
All ten layouts and both fold-outs. $5.99 for one size, $19.99 for every size.
From $5.99
Single insert
Weekly Spread
Monday to Thursday on the left, Friday to Sunday on the right. The weekend gets real room.
From $0.99
Free
Filler Pack
Dot, grid and lined pages on a 4 mm grid. Try the paper before you buy anything.
Get it freeKeep exploring
Four ways to go deeper
YouTube
Every video, by topic
Fountain pens, pocket notebooks, ring planners and carry setups. Start with the series that matches what's on your desk.
Watch videos
Articles
The written reviews
Reviews and buying guides with the specs, prices and photos laid out side by side. Faster to compare than scrubbing through a video.
Read the articles
Stationery Pulse
What the analog world published
New posts and videos from stationery makers and reviewers, gathered into one feed.
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Work & Business Planner Setup 👩🏻💻 Hobonichi A6 Day Free Setup
Quiz · 2 minutes
What's your planning type?
Eight questions. Find out if you're an Architect, Visionary, Minimalist, Sprinter or Collector, with a breakdown of your strengths.
Take the quiz
"The best engineering is invisible. It just works. I want my planning systems to feel the same way."
Luis Duque
My story
I design bridges for a living. Paper is where I plan the rest.
I design bridges in Rapid City, South Dakota. I grew up in the coffee region of Colombia, came to the US for engineering, and found that the discipline of building infrastructure and the discipline of building a life are the same discipline.
Fountain pens, good notebooks and paper planners aren't nostalgia for me. They're precision instruments, and they slow me down in the right way.
Planning Engineered is where I test them in public: what earns a place in my bag, what doesn't, and why.
Ríos de Oro
The fuel behind every field note.
Every morning ritual in my videos starts the same way: Ríos de Oro in the cup before the pen touches paper. Colombian coffee from my family's farms in Caldas, imported directly by my brother Juan and me.
No warehousing. No middlemen. The same coffee my family has grown for over 50 years.
Free. No fluff.
Weekly field notes for intentional planners
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