What's the easiest way to use my outlook account on my windows Nokia lumia 925 so I can type on my phone and it saves to a document on my OneDrive? How do I create a new document on my phone with either Office or OneDrive?
Office on Windows Phone will be automatically connected to the OneDrive that belongs to your primary Microsft Account (the same one you use for store downloads).
To change where a document should be saved simply create a new document -> then open the app bar at the bottom -> select "save to..." and choose phone or OneDrive. If you choose to store the file in the cloud, it will be automatically synced to your phone when you open it.