And of course, it's a baker's dozen...

1. Create a user account (how and why)
2. Please sign your name on talk pages
3. Look before you leap (check for existing articles before you create one on that topic)
4. How to start a new article
5. How to make links to articles
6. How to insert a picture into an article
7. Where on the page to put images
8. A better wiki editor: wikEd
9. Check your work before you save, using Preview
10. Automatic edit summary reminder
11. How to move/rename a page
12. Redirects
13. How to display daily tips on your userpage

If you know even more important tips than these, please come to Tip of the day and add them to our tip collection. Enlighten us with your wisdom, and make Wikipedia a better place for everyone.