If you are using TurboTax Do It Yourself (Online), you can access your returns from any computer that has an up to date browsers, or a mobile device with the TurboTax app installed. You just need to login with the same account. Also, while you can't save your return file, you can get a PDF archive of your return. When you get to the part where you file your return, you'll get the option to download a PDF preview. After you've filed, you'll find a link to the pdf at the bottom of the "Great to see you again!" page.