How do you optimize e-commerce products for SEO?

E-commerce SEO is critical for organic traffic. Optimizations include: keyword-rich product titles (natural, descriptive), detailed descriptions (100-300 words with keywords), unique content (never copy manufacturer descriptions), structured data markup (product schema with price, availability, reviews), optimized images (descriptive filenames, alt text), category structure (logical hierarchy), URL structure (descriptive, not /product/12345), internal linking (related products, category links), user reviews (unique content generation), and performance optimization (fast loading). Product pages target long-tail keywords: "organic cotton baby onesies size 000" vs generic "baby clothes". Rich snippets show stars, price, availability in search results. Unique descriptions are mandatory - Google penalizes duplicate content, common when selling products multiple retailers carry. We write unique descriptions or use manufacturer content strategically modified. Category pages target broader terms; product pages target specific. Blog content supports product pages (linking to relevant products). E-commerce SEO compounds - adding 100 optimized products creates 100 new ranking opportunities.