Some points.
1. If you have access to a computer, you can file electronically with Turbotax, but you will need to create $1 of income, because you can't e-file with zero income. You can add $1 of bank interest or "other income"; the IRS knows this limitation of their software and they won't object.
2. You can also file your own return using the paper forms and instructions and mailing them in, if someone can provide you copies of the form.
3. If someone else files for you, they should not file electronically, they should print and mail the tax return. They will need to include a form 2848; this is an IRS power of attorney form for tax returns only, and both you and your representative must sign. You will need form 2848 even if you have already given your representative a power of attorney.
4. Your tax refund can only be direct-deposited into a bank account in your name (or a joint account, it must have your name and SSN attached to the account). If you don't have a bank account, you can request the IRS mail a check. When you file your return, use the address where you want the IRS to send mail, even if it is not your current living address (it can be a parent, a friend, etc.)
