Most of these are buried one menu deep or written off as "developer stuff." They're not. Here are the 10 that actually change how much you get out of Claude, spread across all three surfaces. 1. Memory can build itself from your past chats. Claude can generate a memory profile from your conversation history so it stops making you re-explain who you are and what you're working on. This rolled out to every tier including Free in early March 2026, with controls to view, edit, or wipe any single entry. Most people leave it off and never know it exists. 2. Claude can search your old conversations. You can say "pick up where we left off" or "what did we decide on the pricing page" and it pulls the actual thread. This is separate from memory. It turns months of chats into a searchable second brain instead of a graveyard. 3. Projects kill the re-briefing tax. A Project is a persistent workspace where you load reference files and custom instructions once, and every chat inside it inherits that context automatically. Run one per client or workflow so context never bleeds between them. This is the single biggest time-saver people skip. 4. Artifacts are real apps now, not just code previews. They can save data across sessions, call Claude's API directly so the AI runs inside the artifact, and connect to Gmail, Calendar, and Slack through MCP. That means a working tracker, calculator, or tool you reuse for months, not a throwaway snippet. 5. Styles save your voice. Instead of retyping "punchy, no fluff, grade 6" on every prompt, you save it as a Style and Claude writes in it by default. Keep different Styles for different personas or channels. Stop paying the tone tax every time. 6. Connectors let Claude touch your real data. Hook up Gmail, Drive, Calendar, Slack, and Claude acts on what's actually there instead of what you paste in. "Find the invoice and add it to the sheet" becomes one instruction. Most people still copy-paste like it's 2023. 7. Cowork is already included in your plan. Cowork is the desktop agent that reads and writes local files, works across connected apps, and carries multi-step tasks through to finished deliverables with citations back to the real files. It's bundled into Pro and up, not a separate purchase, and it's a sibling to Claude Code, not the same thing. If you pay for Claude and only use the chat box, you're using a fraction of what you bought.