Learn how to save credits in Perplexity Computer, avoid costly loops, track usage, and use the tool for the workflows that actually justify the burn.

Published: 2026-03-13 | By Karo Zieminski

Perplexity Computer is one of the most impressive AI products I’ve tested this year. It is also one of the easiest ways to spend a lot of money. Long-time readers know I’m not here to hype shiny tools, but to learn how to use them well. I push them to their limits and report what I find. That’s exactly what I’ve been doing with Perplexity Computer since launch day, building everything from infographics and automations to a new tool for this community that drops next week. *Hi, I’m Karo!

What works, what breaks, and how to make Claude Cowork genuinely useful in 2026.

Published: 2026-03-10 | By Karo Zieminski

Nine days. That's how long I spent breaking Claude Cowork before writing a single word of this guide. I’ve seen enough of shallow tutorials that simply rephrase the official docs to know I wanted to do something different. So I rebuilt some of my workflows from scratch, tracked what failed, measured what saved time, and mapped 56 practical tips into the resource I wish existed when I started.

Build with Attitude #5: How to product-think when AI builds at lightning speed

Published: 2026-03-05 | By Karo Zieminski

The typical vibe-coded tool starts with a business idea. This one started with rage. A professor on Reddit had built an elaborate trap for students: fake citations, trick questions, prompt injection. The post radiated smugness. The comments cheered. And somewhere in the thread, the quiet part went unsaid: this person spent more time on surveillance than on teaching. read that post and felt an urge to fix this. > *We’re educators, not cops.

Every Claude guide I've tested and published: Code workflows, Cowork setups, Skills tutorials, CLAUDE.md files. Real prompts, real failures, nothing theoretical.

Published: 2026-02-21 | By Karo Zieminski

Last updated: March 2026 Tested guides. Real prompts. Documented failures. This is everything I’ve published about Claude on Product with Attitude — organized so you can find what you need and skip what you don’t. Claude is also the #1 AI app on Apple’s U.S. App Store right now, which means a lot of people are about to need these guides. **👉 New to Claude? Start with the Chat vs Cowork vs Code section right below.

Your Cowork Connectors are probably underperforming. Here's the three-layer architecture most guides skip, and how I turned Notion into Claude's persistent memory.

Published: 2026-02-25 | By Karo Zieminski

While some Cowork Connectors are flaky at best, some are genuinely transformative.

Your Cowork Connectors are probably underperforming. Here's the three-layer architecture most guides skip, and how I turned Notion into Claude's persistent memory.

Published: 2026-02-25 | By Karo Zieminski

While some Cowork Connectors are flaky at best, some are genuinely transformative.

Every Claude guide I've tested and published: Code workflows, Cowork setups, Skills tutorials, CLAUDE.md files. Real prompts, real failures, nothing theoretical.

Published: 2026-02-21 | By Karo Zieminski

Last updated: March 2026 Tested guides. Real prompts. Documented failures. This is everything I’ve published about Claude on Product with Attitude — organized so you can find what you need and skip what you don’t. Claude is also the #1 AI app on Apple’s U.S. App Store right now, which means a lot of people are about to need these guides. 👉 New to Claude? Start with the Chat vs Cowork vs Code section right below. ** [](https://substackcdn.com/image/fetch/$s_!jVAL!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa17b1657-2e33-4bc2-b978-23134ab2fb0e_2396x335.

Your Cowork Connectors are probably underperforming. Here's the three-layer architecture most guides skip, and how I turned Notion into Claude's persistent memory.

Published: 2026-02-25 | By Karo Zieminski

While some Cowork Connectors are flaky at best, some are genuinely transformative.

Every Claude guide I've tested and published: Code workflows, Cowork setups, Skills tutorials, CLAUDE.md files. Real prompts, real failures, nothing theoretical. A read for builders, PMs, and anyone who refuses to ship without thinking.

Last updated: March 2026

Tested guides. Real prompts. Documented failures. This is everything I’ve published about Claude on Product with Attitude — organized so you can find what you need and skip what you don’t.

Claude is also the #1 AI app on Apple’s U. S. App Store right now, which means a lot of people are about to need these guides.

Your Cowork Connectors are probably underperforming. Here's the three-layer architecture most guides skip, and how I turned Notion into Claude's persistent memory. A read for builders, PMs, and anyone who refuses to ship without thinking.

While some Cowork Connectors are flaky at best, some are genuinely transformative.

In this article I’m walking you through how I set up my Cowork-Notion Connector to be the latter and share 10+ impactful tips you might not have heard of before.

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