Guides.
Practical guides on invoicing, freelancing, and the operational side of running a one-person business. Plain English, no fluff, always paired with a tool you can use right now.
· Invoicing
How to make an invoice
The fields that are legally required, the ones that get you paid faster, and the ones that cause disputes, with a free tool to make one in under five minutes.
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· Invoicing
How to invoice a client (first time)
What to collect before the job starts, the email that gets paid faster, and the mistakes that make first-time freelancers look like first-time freelancers.
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· Invoicing
Invoice vs. receipt vs. bill
Three words, three different legal and accounting functions. Using the wrong one won't sink a deal but can quietly cost you two weeks of AP review.
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· AI
Claude Design: first look
Anthropic's new brand-system generator: what it does well, what it doesn't, and how we used it to build Briskly's actual identity.
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· AI
MCP server primer
What a Model Context Protocol server actually is, how to plug one into Claude Desktop in three steps, and how to ship your own to npm in an afternoon.
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· AI
Claude vs GPT-5.5 vs Gemini: API pricing compared
Current Anthropic rates (Opus 4.7, Sonnet 4.6, Haiku 4.5) benchmarked against GPT-5.5, GPT-5.4, Gemini 3.1 Pro, and Llama 4, with per-workload math on which is cheaper.
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· AI
Claude vs ChatGPT vs Gemini
An honest side-by-side: what each is actually better at, what they cost, and which to pick for your workload. Five real scenarios with specific recommendations.
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· AI
Prompt caching, explained
What prompt caching is, how Claude / OpenAI / Gemini implement it (90% / auto / 75% off), and a live calculator that shows your actual monthly savings.
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· AI
System prompts, explained
The instruction that sets role, tone, constraints, and tools before the conversation starts. Anatomy, template, anti-patterns, and how each provider interprets it.
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· Invoicing
How to invoice as a freelancer
9 required fields, 4 billing models (hourly / project / retainer / mixed), negotiation table for payment terms, follow-up cadence, and tax handling across US/CA/UK/EU/AU.
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· Invoicing
How to make an invoice in Excel
Six-section layout, three formulas, PDF export. 10 minutes the first time, 2 minutes after. With the five mistakes that send invoices to AP-rejection purgatory.
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· AI × Invoicing
How to make an invoice with AI
Claude in Google Sheets, ChatGPT with Canvas, Gemini in Workspace. The prompts that work, what AI beats a tool at, and where it doesn't, plus a copy-paste prompt template.
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· AI × Freelance
How to set your freelance rate with AI
Market research with Claude, negotiation scripting with ChatGPT, cost-of-business math with Gemini. The prompts that work, the math AI still gets wrong, and a copy-paste template.
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· AI × Legal
How to draft a freelance contract with AI
Claude for clause drafting, ChatGPT Canvas for redline negotiation, Gemini for jurisdiction checks. The prompts that work, the clauses AI forgets, and when you still need an attorney.
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· AI Output
How to stop AI from using em dashes
Em dashes became the #1 AI-detection tell in 2026. Copy-paste prompts for Claude, ChatGPT, and Gemini, plus a Claude Code skill file, a ChatGPT custom instruction, and a regex lint script.
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· AI
AI agent platforms in 2026
Six platforms worth evaluating: Claude Agent SDK, OpenAI Agents, LangGraph, CrewAI, n8n, and AutoGen. What each is good at, what each costs, and a framework for picking between them.
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· AI
Agentic AI companies in 2026
Ten companies actually shipping agentic AI products in 2026: foundation-model providers (Anthropic, OpenAI, Google, Microsoft), pure-play startups (Sierra, Cognition, Lindy), and the framework layer (LangChain, CrewAI).
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· AI
AI workflow automation in 2026
Zapier, n8n, Make, Bardeen, Pipedream, and Microsoft Power Automate compared. Cost math at realistic volume, a three-question picking framework, and how workflow tools differ from AI agents.
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· Legal
Esign lease agreement template
A free residential-lease template plus a no-cost esign workflow that's enforceable in all 50 US states under the E-SIGN Act and UETA. Five-minute PDF, four mistakes that hurt enforceability.
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