As I'm sure you know, teachers generate a lot of 'paper work' (as do most other professions). We need to have access to this work in a variety of different situations, especially if like me you have to teach in 4 different classrooms (sometimes all in one day) and also at home. I used to use USB sticks, I had a fantastic one that I could wear as a bracelet, but then cloud computing arrived.
I can now access all my computer files from home by logging into the school network. But sometimes you want to have your own virtual USB stick (and I'm sure you can already see where this post is going) and that's where cloud storage comes in.
There are a variety of different options available, from the well known like Dropbox, to the relatively new Google Drive, even Microsoft's Skydrive. But all of them enable you to save your files in the cloud, and access them just about anywhere (as long as you have internet connection).
I am not going to analyse which cloud storage if the best, there are many review sites that can help you (I found this one, which was very interesting). I use Dropbox and Google Drive (as I have quite a few Google Docs). Both of these have apps, in fact most cloud storage sites have associated apps.
One reason why I like Dropbox is that it links in to so many of my other apps. My main PDF reader (Goodreader), my current planner (Teachers Attaché), even one of my document creators (Quick Office) all save files through Dropbox. You can also share folders with other people, something I found very useful when I was developing a new project for school.
But the main thing I like about cloud storage – you can't lose it or damage it (unlike my poor bracelet USB that had an unfortunate altercation with a pan of boiling water in a food lesson). Just make sure you don't forget your password!