E-filing your tax returns simply means sending it to the IRS electronically instead of through the mail. The advantages of going the e-file route are twofold. You save money on stamps and you could get your refund back much earlier than if you file by mail. Just be sure to follow the proper procedure to make sure your information doesn't get lost in the Internet abyss. It shouldn't take more than 15 to 20 minutes of your time.