How I Use It
I use Dropbox daily to sync files between home and work. You can link multiple devices to seamlessly sync between each other. My students all have Dropbox which they can store files on the cloud, There are various ways to gain more cloud storage space for free. Linking Facebook, Twitter, having other people join, etc. Most of my students have 50GB of free storage and it only took about 15-20 minutes worth of setup.
I love Dropbox it is a wonderful tool for those of us that have files that we take home with us at night. Its also great because you can send a link to students in an email which will allow them to download the file. It is web based and client based which makes it very easy to upload files no matter where you are.