Dropbox for Windows 10 is a file synchronization program that keeps all of your files synced to the cloud. And a document scanner to turn receipts, documents, whiteboards, and notes into PDFs.
Sway is a great application for the creation of visually stunning marketing material, and it's available for free. Easily share and collaborate by sending a link and syncs through the cloud.
Wunderlist lets you create as many tasks as you need, arrange them in custom lists, assign a date to each of them and mark the important ones with a star.
The OneDrive app can help users access, save, and protect the files and folders on your devices with the cloud. Works well with Windows10, Windows10 mobile and Xbox.