Gmail, Google's approach to email, has a little-known feature which makes it very easy to filter spam and easily manage email. Many people keep a "junk" email account which they use when signing up for websites and registration forms online. This way, when some of these websites spam their inbox with messages, it will go to their "junk" email account only and not their real one. Gmail has a way to eliminate the hassle of checking this separate account and wading through all of the useless emails in it. Here's how to do it - in the following example we'll use myemail@gmail.com as the example account:

1. When inputting your Gmail account into an online form, add +somethingDescriptive to the end of it. For example, if registering for siteA.com, you could enter myemail+siteA@gmail.com as the address. This little trick will still direct the email to your Gmail account like if you entered your normal myemail@gmail.com account name
2. In your Gmail account, click on Settings - Filters - Create a new filter. In this new window, enter the email address you made up for the To field. In this example, we used myemail+siteA@gmail.com. Now click Next Step. 
   
   


3. On this following screen you have the option of applying a Label to all messages sent to this address, thus filtering them automatically for you. Alternatively, if you realize later that siteA is really just spamming your inbox, you can check the Delete It checkbox and all messages from siteA will automatically be deleted without you ever seeing them
   
   


4. Click Create Filter and you're done!