CheatSheeting

Michael de Armas, Founder

Calgary, Alberta, Canada
Michael de Armas building cheat sheets CheatSheeting logo
From Cuba to cheat sheets

When Michael de Armas packed up for a move from Havana, Cuba to Calgary in Canada nearly twenty-five years ago, he also took with him a knack for making practical things.

A software developer by trade, he spent late nights tinkering with things like the Google Maps APIs for his employer, and then built a hobby site that mapped every restaurant, rink, and playground in the city.

That experiment, which he hosted from home himself, taught him two lessons: (1) people love tools that make life simpler, and (2) Michael enjoyed making such tools available for folks.

By 2011, Michael’s side projects had multiplied.

He had built out websites for everything from looking up postal codes, to generating secure passwords, to getting map directions. But the most compelling out of the bunch? None other than CheatSheeting.com: a place where visitors could get their hands on handy-dandy “cheat sheets” for everyday conveniences such as unit conversions. Forget memorizing how many tablespoons fit in a cup; just one click and you have yourself a chart.

“I thought, why force anyone to remember obscure ratios when a sheet can do it for them?” he recalls. Traffic came from people searching for quick answers. Soon he added currency-exchange tables to the mix and, at the request of readers, even math charts for percentages and multiplication.

The site’s name, he jokes, is simply a “verbified” way of describing what people do: cheat-sheeting. But the mission is most definitely a serious one: democratize reference knowledge.

“I’ve always believed the internet — and everything on it — should be free for everyone,” he says.

Michael, his keyboard, and a million conversions
Where free meets sustainable

At first, Michael experimented with offering a downloadable bundle of conversion sheets through e-commerce. But the idea of turning it into some kind of paid product didn’t really sit well with him.

“I just don’t like charging folks…or being charged myself,” he laughs. Plus, managing invoices and refunds pulled him away from the thing he really enjoyed: coding. Not to mention, most people simply wanted a single conversion, not a full book.

So, he went looking for revenue elsewhere, a model that wouldn’t burden readers (or Michael).

Ads felt like the logical path: passive, automated, and, of course, aligned with his free-access philosophy. Michael had already opened an AdSense account years earlier. Now, with CheatSheeting.com growing, it turned out to be the right fit.

“Thanks to ads, revenue has grown steadily, allowing me to keep all my websites operational and free to users,” he notes.

As someone who manages nearly everything himself, Michael appreciates the hands-off simplicity. “It’s 99% just myself,” he notes. “Sometimes I get help from my wife, but mostly I do everything.”

Ads help to cover the bills so that Michael is able to keep all of his websites operational, without ever needing to ask visitors for a dime.

“Thanks to ads, revenue has grown steadily, allowing me to keep all my websites operational and free to users.”
Math, maps & more

Ad income couldn’t have come at a better time too. When post-pandemic return-to-office mandates loomed, Michael was able to opt out, thanks to his portfolio of active AdSense sites.

CheatSheeting now supports all manner of currency exchange charts, popular math sheets like times tables and square-root charts, along with Celsius-to-Fahrenheit converters (and vice-versa) that spike every vacation season.

Ads have afforded him the freedom to focus on what he loves: “poring over the numbers and hunting for clues to make the site better,” he says.

Nowadays, when someone suggests a useful chart, Michael often builds it and emails them a link once it’s live. “It’s gratifying to know you’ve made someone’s life easier,” he says.

Looking ahead, Michael plans to continue refining and growing his collection of cheat sheets based on user needs and suggestions, always with the goal of making life a little easier for whoever stumbles across his site.

For a man who once hosted a city map on a home PC, the equation feels correct: Free tools + ads = sustainable open web + a fulfilled Michael.

About the Publisher

Michael de Armas is the creator of CheatSheeting.com, a free reference site offering digital cheat sheets for everything from kitchen conversions to math formulas. Originally from Havana, Cuba, and now based in Calgary, Michael draws on his background in software development to build practical tools that make life easier.

Michael de Armas headshot