I have just started using OneNote on my Windows notebook and iPad. So far it has been quite intuitive and I can see my notebook on both machines--I understand how they are being synced.

However, we cruise frequently--frequently no internet available, and always exorbitant when it is (75c a min to VERY SLOW connection).

There is no save button, so how can I be sure I can access my information when we are without internet?

OneNote stores the information locally as well. Whenever you have a connection again it will sync the last changes you have made. So work offline and when returning to the 'fast' world OneNote will automatically sync when you are online again.

Thanks you. After I posted this I realized that I could experiment at home by disabling my router, but it's good to have it confirmed.