Instead of making sketches on paper to design a user interface, you may want to use Balsamiq Mockup.
Balsamiq Mockup supports cloud storage.
The mode is available in the View menu, but it is easier to use the shortcut key.
The UI Library in the standard view mode is a collection of UI controls.
Of all the available controls, drag the ones you gotta the canvas to draw a user interface.
Once you place a UI control on the canvas, you might tweak it to fit the mockup.
The snapping makes it easier to arrange the controls.
The music is intended to get you into the creative zone.
However, whether or not it is working as intended depends on your preferences.
It might be useful or it might be as pointless as the dinner recipe suggestion in Balsamiq Mockup.
Balsamiq Mockup can be installed for current user only or all users in Windows.
The latter requires an administrator right.
