Most "side hustle" advice is recycled garbage from 2019. Here's what's actually working right now for people with day jobs:

1. AI service arbitrage — Companies are desperate for AI implementation but don't know where to start. You learn one tool deeply (Cursor, Make, n8n) and charge $500-2k to set up workflows. Takes 2-3 hours per client once you're dialed in.

2. Niche newsletter flipping — Pick a micro-niche (e.g. "AI tools for real estate agents"), grow to 1,000 subs with free content, then monetize with sponsorships at $50-100 CPM. The trick: go narrow enough that you're the only option.

3. Digital product stacking — Create one Notion template, Figma kit, or prompt pack. Price it at $19-29. Then create 5 more. Stack them. The math works because each product costs you time once but sells forever.

The common thread? All three can be done in 5-10 hours/week alongside a full-time job.

I break down exact step-by-step playbooks for methods like these inside Side Cash Lab. New blueprint every week, plus a community of people actually doing this stuff.