Cheating - Cookie Clicker Wiki
http://cookieclicker.wikia.com/wiki/Cheating
If you would like to experiment around the game mechanics or just give yourself a (albeit unscrupulous) "boost" to your game here are some cheats you can try. They require a bit of interaction with browser technical stuff.
Top 10 List - GameFAQs
http://www.gamefaqs.com/features/top10/281.html
"The following is a list of the top 10 most memorable cheats that will hopefully forever be remembered in video game history."