Arriving a bit early for Spring 2017, Field Notes' latest limited edition memo books — dubbed the "Utility" edition — each sport a "safety yellow" cover and a small 5" ruler that flips out from the back. Check out the entertaining promo video they made:

The memo books come ruled in your choice of:

1. Engineer graph grid — ⅛" grid with bolder lines every half-inch. “It awaits your schematics, assembly drawings, geometry homework, or dungeon maps.”
2. Ledger lines — “Ultra-handy for mileage logs, parts lists, to-do lists, or any sort of handwritten accounting.”

Each 3-pack is $13 at Field Notes.