Let's see:
Ask a question
If it's good you get THREE upvotes... and you can upvote.Post ONE good answer
Have it voted up, just TWICE, or get it right... and you're there.Link an existing account
If you already have a Stack Exchange account elsewhere and you link it, you get 100 reputation!
It isn't that hard to get 15 reputation. Getting that reputation basically means that you've bothered to make an effort and have contributed to the site.
