Dropbox is indeed cool. Most people never get past the cloud storage features and really take a close look at some of the amazing things you can do with Dropbox. Like run a web site from your Dropbox or use it to control every DB connected device from any other DB connected device.
I dump all of my files into one Dropbox and they are sorted and moved to separate folders by file type. I can tag an image with a certain file name and the file will be automatically emailed to my brother with a text file from yet another folder, and I really like that I can drop Word documents into a special DB folder where it is converted to a PDF file and either emailed or moved to a folder.
Dropbox is very cool.