Growth Hacking Brainstorm

Generate 20 growth hacking ideas for [product/company] at [growth stage]. Constraints: budget [X], team size [Y], timeline [Z]. Categorize by: Acquisition (7), Activation (5), Retention (5), Referral (3). For each idea: (1) Mechanism (why it works). (2) Implementation difficulty (1-5). (3) Expected impact (1-5). (4) Time to first result. (5) Failure mode. Prioritize by ICE score (Impact × Confidence × Ease). Top 3 to test first.