What are the recommended techniques for optimizing Magento's URL rewrites for SEO?

@hanna 

1. Use descriptive URLs: Use descriptive URLs that reflect what the page is about. This helps both users and search engines understand the content of the page.
2. Avoid generic URLs: Avoid using generic URLs such as product-123 or category-xyz. Use unique, descriptive URLs for product and category pages.
3. Use hyphens: Use hyphens to separate words in the URL. Avoid using underscores or spaces as search engines don't recognize them as separators.
4. Include keywords: Include relevant keywords in the URL. This will help search engines understand the content of the page and improve the page's visibility in search results.
5. Keep URLs short: Keep URLs as short as possible without losing their descriptive nature. Shorter URLs are easier to remember and share and also get more visibility in search results.
6. Avoid duplication: Avoid creating duplicate URLs for the same page. This can cause confusion for search engines and affect the page's ranking.
7. Use canonical tags: Use canonical tags to avoid duplication and inform search engines which URL is the primary version of the page.
8. Set up redirects: Set up redirects for old URLs to new ones to avoid broken links and maintain the page's ranking.
9. Use relevant categories: Use relevant categories and subcategories for products to improve navigation and make it easier for users to find what they're looking for.
10. Use SEO-friendly URLs: Use SEO-friendly URLs that include relevant keywords for better visibility in search results.