Claude Everywhere

Yesterday was the big one. Cowork is the power tool. Today is about something equally practical but less flashy: putting Claude exactly where you already spend your time.

Because the biggest friction with AI isn't capability. It's context-switching.

You're in Slack reading a long thread. You think "I wish I could summarize this." So you copy the text, open a new tab, go to Claude, paste it, get the summary, go back to Slack. That's 60 seconds of switching between tools. Most people don't bother. The friction kills the habit.

What if Claude was just... there? In Slack. In Excel. In your browser.

Claude in Slack

If your team uses Slack, this is the easiest integration to set up and probably the one you'll use most.

Tag @Claude in any channel or thread and it responds right there. No tab-switching. No copy-pasting.

What it's good for:

• "Summarize this thread" - Drop @Claude into a long discussion thread and get a summary of key points and decisions.
• "Draft a response" - "@Claude draft a response to this explaining that we're pushing the timeline by a week. Keep it diplomatic."
• Meeting prep - "@Claude pull together everything discussed in #product-launch this week. What's decided and what's still open?"
• Quick research - "@Claude what's the current market rate for a senior product designer in Austin?"
• Onboarding help - New team member can ask @Claude about past discussions, decisions, and context from channel history.

The killer feature: Claude can search your Slack workspace. Channels, DMs, files. So when you ask it about something discussed last month, it can actually find it.

How to set it up: Your workspace admin adds the Claude app from the Slack App Directory. Once installed, any team member can tag @Claude in channels and threads.

Claude for Excel

If you spend meaningful time in spreadsheets, this one's for you.

Claude for Excel adds a sidebar directly inside Microsoft Excel. You chat with Claude while looking at your spreadsheet - no switching windows.

What it's good for:

• Understanding inherited spreadsheets - "Explain how the calculation in cell F23 works across these sheets." Claude traces the formula chain and explains it in plain English.
• Building new spreadsheets - "Create a monthly P&L template with revenue categories, expense categories, and a summary sheet with charts."
• Debugging errors - You're staring at #REF! or a circular reference. Claude traces it to the source and tells you how to fix it.
• Data analysis - "What trends do you see in this data? Create a pivot table showing revenue by region and quarter."
• Updating models - "Change the growth rate assumption from 15% to 22% across all sheets while preserving the formula relationships."

How to set it up: Install the Claude for Excel add-in through Excel's Add-ins menu or the Microsoft 365 app store. Works with Excel on desktop.

Claude for Chrome

Claude for Chrome adds a sidebar to your browser. It can see the page you're on and take actions.

What it's good for:

• Summarizing articles - Reading a long piece? Open the sidebar and ask "What are the key takeaways?" Claude reads the page.
• Email help - In Gmail, ask Claude to draft a reply based on the thread you're looking at. It sees the conversation.
• Form filling - Repetitive forms? Claude can help fill them based on information you've provided before.
• Research while browsing - Ask Claude questions about whatever you're reading without losing your place.
• Multi-step tasks - "Navigate to [site], find the pricing page, and compare their enterprise plan to what I'm paying."

Important note: Chrome extension is in research preview and currently available for Claude Max subscribers. It asks permission before taking high-risk actions (purchases, sharing personal data). Start with low-risk tasks on trusted sites.

When to use which

Here's the simple decision tree:

The point isn't to use all of them. The point is to put Claude where it eliminates the most friction for YOU.

If you live in Slack, start there. If spreadsheets are your life, start with Excel. If you're a browser tab hoarder, Chrome might be your entry point.

The bigger picture

Over the last 9 days, you've seen Claude go from chatbot to something else entirely.

Day 1-2: You learned to talk to it and fix what's wrong.

Day 3: It remembered your context (Projects).

Day 4: It built you things (Artifacts).

Day 5: It learned your process (Skills).

Day 6: It connected to your tools (Connectors).

Day 7: It did your research (Research mode).

Day 8: It handled entire projects (Cowork).

Day 9: It showed up where you work (Slack, Excel, Chrome).

That's not "using AI." That's building a system.

Tomorrow, we put it all together.

Try this today

Pick the one integration that matches where you spend the most time:

• Slack user? Ask your admin to add the Claude app. Tag @Claude in a long thread and ask for a summary.
• Excel user? Install the add-in. Open your most complex spreadsheet and ask Claude to explain a formula chain.
• Browser user? If you have Max, install Claude for Chrome. Summarize the next long article you read.

Start with one. The goal isn't to use everything - it's to remove one point of friction from your day.

The best AI tool is the one that meets you where you already work. Claude lives in Slack, Excel, Chrome, and your desktop - pick the one that saves you the most context-switching.