If you don't have an up to date phone, then as Azza suggested, a portable USB stick is a great solution as you can encrypt the stick as well (with a different password) then, should you loose it, you have a two-factor solution.
Testing Sticky Password at the moment and you have to manually export the databbase then sync it with your phone (again manually) so you have nothing in the cloud - which is just what I wanted.
M.