The biggest shopping event of the fall kicks off next month. Here are all the details, along with stellar sales you can score right now.

An Amazon Prime membership is $14.99 per month or $139 per year if you choose to pay annually (the monthly rate for that is about $11.50). But right now, Amazon is offering a special Prime deal: You can get three months of Prime for just $7.49.

Go to the main Amazon Prime page and click on "Try Prime," then follow the instructions. Note that you need an Amazon account before you can sign up for Prime, but if you don't yet have one, it's easy to set up. Go to Amazon and enter your details to create an account, then add Prime to get the 30-day free trial.