Create an Account
First things first, you must create an account. Simply go to the home page and fill out the info in the register section, or you can login with Facebook. After registering your account, check your email for a verification code and log in.
You can search for whatever items you want or browse through the categories to find the items you want. After you find the item you want, click the green '+' icon or the 'Add to Watch List' button. The item will show up in your watch list and you will begin receiving notifications about that item via email, twitter, and/or SMS.
Once you have the item(s) you want in your watch list you can modify when to receive notifications about those items from the home page. In your watch list find the item you want to modify then select when to get notifications from the drop-down box and optionally set the threshold. After you have chosen the settings you want press the green check icon.
To delete an item simply find the item in your watch list and click the red 'x' icon. Alternatively, you can find the item page and click the 'Remove from Watch List' button. You will no longer receive notifications about that item.