You don't have to! Lots of people never even look in their Spam folder.

Still, while we try very hard to deliver solicited bulk or commercial email (in other words, the stuff we think you want) directly to your Inbox, we may occasionally mis-deliver a message, so that something you wanted to get in your Inbox ends up going into your Spam folder. This is why we suggest checking Spam from time to time to make sure that you don't have any messages there that you actually wanted.

If you receive mail in your Spam folder that you would prefer to see in your Inbox, click the "Not Spam" button after selecting the message in your Spam folder.