Sky writing

Now that mobile devices allow you to work almost anywhere, how do you access the files you need? Thing 29 File sharing may be the answer.

Dropbox is a file-hosting service that provides cloud storage and file synchronisation, while also being very mobile friendly.
Skydrive (now OneDrive) is the Microsoft cloud storage service and a range of mobile apps. 
Google Drive  is a personal cloud storage service from Google that works with a suite of web and mobile apps
While Hojoki offers a single access point for a range of file sharing and cloud storage apps including Dropbox, Google Drive, Evernote, Skydrive, Box and Cloudapp.
I've used both Dropbox and Google Drive to send and share files, especially large PowerPoint files with colleagues across the state.
I've even got a company to send me a whole heap of photographs via Dropbox after the USB file was corrupted.
Whatever you choose to use or not use, everyone has to balance the ease and efficiencies against the security and costs.