This is a tutorial I originally created on se7ensins and decided to share with you guys if you have not already seen it. The link to the original thread is [NEW] How to get free or cheap XBL Gold every month. Xbox 360 Tutorials and I update that one frequently. It is a stickied thread so it is at the top. If you guys have any questions, feel free to ask them here but I mostly contribute to the 7s community. If outside links are not permitted, feel free to let me know and I'll edit the post.
PLEASE READ AT THE VERY BOTTOM FOR UPDATED INFORMATION.
This is a really easy way to get the best promotions for your main account every month with no problems. Whenever you get a promotion, you usually get a different promotion when your Gold runs out. However, this tutorial eliminates that problem and gives you the best promotion ALWAYS. This tutorial is similar to some of the other ones but most of them don't work any more so I decided to make a new method. I will update the current promotions as often as possible. So here we go!
OFFERS MAY VARY! Either Free or $1 a month offers are common.
Requirements:
2 controllers
1 Silver account that has never been Gold.
Your main account that is currently Silver.
Make sure you are signed out of your main account and any other accounts on the Dashboard.
Sign into your NEW or UNUSED Silver account on the first controller.
Sign into your MAIN account that is currently Silver on your second controller.
On the Dashboard, with controller #1, scroll through the ads until you see the current promotion.
Sign out of controller #1
Select the promotion with controller #2. It should now go through the process of adding the new Gold user promotion on your used account.
Congratulations! You can rinse and repeat every month to always get the new Gold member perks!
IMPORTANT!
Make sure to turn AUTO-RENEWAL off so you don't get billed when the promotion is over! To do this you can go to XBOX.COM > My Account > Automatic Renewal (Turn OFF)
UPDATE: 8/19/2012
This currently still works but it does not work on the beta dashboard. Know why? The beta was designed for Gold members only. They won't have offers available on the beta for Silver members. When the public release of the dashboard is released, they will have the same offers as they have always had.