These are some of the most common questions I am asked as a Notary Public
What do I do if I don't have valid identification but still need notary services.
You can go to a notary who knows your personally or get a credible witness who has valid identification to vouch for you.
Can I sign the document before I go to the notary?
If the document is an acknowledgement yes, if the document is a Jurat no.
How do I know if I need an acknowledgement or a Jurat?
The notary is Not an attorney and is not allowed to advise you. You ask the person requesting you for the notarization if they want an acknowledgement or a Jurat.